Maharashtra Board Class 10 Geography Chapter 3 Physiography and Drainage Solutions

1. Complete The Sentences By Choosing The Right Option :

Question a. Brazil is covered mainly by _______.

(a) highlands
(b) mountainous region
(c) plains
(d) dissected hills
Answer: (a) highlands
In simple words: Brazil's landscape is predominantly composed of plateaus and highlands, with smaller areas of plains and coastal regions.

🎯 Exam Tip: Recognizing the dominant physical features of a country, like Brazil's highlands, is crucial for geographical understanding and scoring in MCQs.

 

Question b. Like Brazil, India too has _______.

(a) high mountains
(b) west flowing rivers
(c) ancient plateau
(d) snow-capped mountains
Answer: (c) ancient plateau
In simple words: Both Brazil and India share the characteristic of having ancient plateau regions as a significant part of their physiography.

🎯 Exam Tip: Comparative analysis of geographical features between countries often appears in exams; focus on similarities and differences.

 

Question c. The Amazon Basin is mainly _______.

(a) characterized by droughts
(b) filled by swamps
(c) covered by dense forests
(d) fertile
Answer: (c) covered by dense forests
In simple words: The Amazon Basin is characterized by its vast, dense tropical rainforests due to high rainfall and equatorial climate.

🎯 Exam Tip: Understanding the climatic conditions and their impact on vegetation in major geographical regions like the Amazon Basin is key.

 

Question d. Amazon is a large river in the world. Near its mouth _______.

(a) deltaic regions are found
(b) no deltas are found
(c) deposition of sediment occurs
(d) fishing is done
Answer: (b) no deltas are found
In simple words: Despite its immense size, the Amazon River does not form a delta at its mouth because its strong currents carry sediments far out into the ocean.

🎯 Exam Tip: Unique characteristics of major rivers, such as the absence of a delta for the Amazon, are important points to remember.

 

Question e. The Lakshadweep Islands of the Arabian Sea are _______.

(a) made from the part separated by mainland
(b) coral islands
(c) volcanic islands
(d) continental islands
Answer: (b) coral islands
In simple words: The Lakshadweep Islands are primarily formed from coral polyps and their skeletons, distinguishing them as coral islands.

🎯 Exam Tip: Knowing the geological origin of island groups, like Lakshadweep being coral, helps differentiate them from other island types.

 

Question f. To the foothills of the Aravalis _______.

(a) lies the Budelkhand Plateau
(b) lies the Malwa Plateau
(c) lies the Mewad Plateau
(d) lies the Deccan Plateau
Answer: (c) lies the Mewad Plateau
In simple words: The Mewad Plateau is situated near the foothills of the Aravalli mountain range.

🎯 Exam Tip: Understanding the relative location of plateaus and mountain ranges is fundamental for questions on India's physiography.

 

2. Answer The Following Questions:

Question a. Differentiate between the physiography of Brazil and India
Answer:

The Physiography of India	The Physiography of Brazil
The physiographic divisions of India are the Himalayas, the North Indian Plains and the Peninsula, Coastal Plains, and the Islands.	The physiographic divisions of Brazil are: The Highlands, The Great Escarpment, The Coastal region, The Plains and The Islands.
There are long and high mountain ranges in northern and north eastern part of India in the form of Himalayan ranges. The Western Ghats and the Eastern Ghats lie to the west and east of the Peninsular region. The average altitude of the Greater Himalayas is around 6000m.	In Brazil there are no high and continuous mountain ranges. The eastern side of the Highlands is demarcated because of the Escarpment. The Great Escarpment located in south-eastern part of the Highlands has an altitude of 790m in this region with the height gradually decreasing.
In India the Plains occupy a wide area in the north. The Plains lie between the Himalayas in the North and the Peninsula in the South. It extends from Rajasthan in the West to Assam in the East. The Coastal Plains lie to the west and east of the Peninsula.	In Brazil the Amazon Basin in the North and the Parana-Paraguay Basin to the South West constitutes the Plains. Also a narrow coastal plain is confined to the North and the East.
The Peninsular Plateau region of India lies to the South of the North Indian Plains and is divided into 2 groups, the The Central Highlands and the Deccan Plateau.	In Brazil the Highlands occupy an extensive area in the South and is described as the Brazilian Highlands or the Brazilian Shield. Also to the North lies the Guyana Highland.
The islands in India are either volcanic or coral in origin.	The islands in Brazil are mainly depositional and some of them are coral in nature.

In simple words: India has diverse physiographic divisions including high mountains like the Himalayas and extensive plains, while Brazil features ancient highlands, the Amazon Basin, and a significant escarpment.

🎯 Exam Tip: Differentiating between the physiographies of two countries often involves comparing their major landforms, mountain ranges, plains, plateaus, and coastal features in a structured manner.

 

Question b. What measures are being taken to control pollution in the rivers of India?
Answer: Rivers in India are getting polluted due to the sewage and effluents being added to it and thus affecting its quality. Following measures are being taken to control pollution in the rivers in India.
(i) Treating of the sewage before draining it into the rivers.
(ii) Reducing the use of pesticides and insecticides as they drain into the water sources and pollute it.
(iii) Discharge of industrial effluents into rivers without proper treatment is now controlled.
(iv) Reusing the water for different purposes which reduces the overuse and pollution of water.
(v) Carrying out the cleaning and purification of the river water under the National River Conservation Plan (NRCP).
(vi) Creating awareness in the people about the importance of rivers and harmful effects of pollution.
(vii) Setting up of Pollution Control Boards (PCB) at the state and national level to curb pollution.
In simple words: India is implementing various measures like sewage treatment, reducing chemical runoff, controlling industrial waste, promoting water reuse, and increasing public awareness to combat river pollution.

🎯 Exam Tip: When discussing environmental issues like river pollution, providing a range of practical, multi-faceted solutions (technological, behavioral, and policy-based) demonstrates comprehensive understanding.

 

Question c. Explain the characteristics of the North Indian Plains.
Answer:
(i) This division lies between Himalayan Mountains in the north and the Peninsula in the south.
(ii) Similarly, it extends from Rajasthan and Punjab in the west to Assam in the east.
(iii) It is mostly a flat low lying area.
(iv) The North Indian Plains are divided into two parts. The part lying to the east of the Aravalis is the basin of the river Ganga and is therefore known as the Ganga Plains. It slopes eastward.
(v) Most of the Indian state of West Bengal and Bangladesh together constitute the delta of Ganga-Brahmaputra system. It is known as the Sunderbans. It is considered to be the world's largest delta.
(vi) The western part of the North Indian Plains is occupied by desert known as the Thar Desert or Marusthali. Most of Rajasthan is occupied by this desert.
(vii) To the north of the desert lie the plains of Punjab.
(viii) This region is spread to the west of Aravalis and Delhi ranges. These plains have formed as a result of the depositonal work by river Satluj and its tributaries. The slope of the plains is towards the west.
Because the soil here is very fertile, agriculture is largely practised in this region.
In simple words: The North Indian Plains are a vast, fertile, low-lying region stretching from west to east, formed by major rivers like the Ganga and Brahmaputra, and encompassing diverse areas from deserts to deltas.

🎯 Exam Tip: Describing a physiographic division requires mentioning its location, extent, major subdivisions, formation processes, and key characteristics like soil fertility and economic activity.

 

Question d. What could be the reasons behind the formation of swamps in the extensive continental location of Pantanal?
Answer: Pantanal is one of the largest wetlands in the world, lying in the south west part of the highland areas.
It is a region of swamps and marshes in northwestern part of Mato Grosso do Sul in Brazil and it extends into Argentina too.
This region is drained by the river Paraguay and its tributaries.
They collect the water from the highland areas and deposit the sediments in the low lying Pantanal region.
Pantanal is a gently sloped basin which is submerged throughout the year due to the filling of the sediments and water in the depression area of the Pantanal.
In simple words: The Pantanal's swamps form because it's a gently sloped basin that receives water and sediments from surrounding highlands via the Paraguay River, leading to year-round submergence.

🎯 Exam Tip: When explaining geographical phenomena like wetland formation, link causes (e.g., gentle slope, sediment deposition, river drainage) to their effects (e.g., constant submergence, swamps).

 

Question e. Which are the major water divides of India give examples.
Answer: A mountain or an upland which separates two drainage basins is known as a Water Divide. The major Water Divides of India are :
Western Ghats: The Western Ghats acts as a water divide and separates the west flowing rivers like Zuari, Mandvi, Vaitama draining into the Arabian Sea, from the east flowing rivers like the Godavari, Krishna and Kaveri draining into the Bay of Bengal.
Vindhya ranges: It divides the drainage basin of the River Ganga and the River Narmada.
Aravali ranges : The Aravali ranges separate the west flowing river Luni from the east flowing river Banas.
Satpuda ranges: The Satpudas separate the Narmada drainage basin and the Tapi drainage basin.
In simple words: Water divides in India, such as the Western Ghats, Vindhya, Aravali, and Satpuda ranges, are uplands or mountains that separate different river drainage basins, directing rivers to different seas or other basins.

🎯 Exam Tip: Naming and providing specific examples of river systems separated by each water divide is essential for a complete answer.

 

Question 3. Write notes on :

a. Amazon River Basin:
(i) Amazon collects its headwaters from the eastern slopes of Andes Mountains in Peru.
(ii) Amazon River receives huge discharge. This is about 2 lakh m³/s.
(iii) As a result, Amazon washes off the load supplied to it from the catchment
(iv) Consequently, sediments are not deposited even at the mouth.
(v) A dense network of distributaries, which is a characteristic feature of river mouth areas, is by and large absent in the mouth region of Amazon.
(vi) Instead, we find a series of islands developed along the mouth of Amazon, beyond the coastline into the Atlantic Ocean.
(vii) At the mouth, the width of Amazon channel is 150 km.
(viii) Most of the course of the Amazon river is suitable for navigation.
In simple words: The Amazon River Basin, originating in the Andes, has an enormous water discharge that prevents sediment deposition and delta formation at its wide mouth, instead forming islands and being largely navigable.

🎯 Exam Tip: When writing notes on a major river basin, include its origin, discharge characteristics, sediment transport, mouth features, and navigability.

 

b. Himalayas:
(i) The Himalayas is one of the young fold mountains in the world.
(ii) The Himalayas extend from Pamir Knot in Tajikistan to the east. It is a major mountain system of the Asian continent.
(iii) In India, it extends from Jammu and Kashmir to Arunachal Pradesh.
(iv) The Himalayas is not a single mountain range. There are many parallel ranges in the system.
(v) The southernmost range of Himalayas is known as the Siwaliks. It is also the youngest range.
(vi) Beyond the Siwaliks are Lesser Himalayas (Himachal), Greater Himalayas (Himadri) and Trans Himalayan ranges from south to north.
(vii) These ranges are young to old respectively.
(viii) These mountain ranges can also be divided into Western Himalayas (or Kashmir Himalayas), Central Himalayas (or Kumaun Himalayas) and Eastern Himalayas (or Assam Himalayas).
In simple words: The Himalayas are young fold mountains extending across Asia, comprising multiple parallel ranges like Siwaliks, Lesser, Greater, and Trans Himalayas, and are further divided regionally into Western, Central, and Eastern Himalayas.

🎯 Exam Tip: For a comprehensive note on the Himalayas, cover their geological type, extent, parallel ranges with their specific names and relative age, and regional subdivisions.

 

c. The coasts of Brazil:
(i) Brazil has a coastline of about 7400 km. They are divided into two parts namely northern coast and the eastern coast.
(ii) The northern coast extends from Amapa province in the north to Rio Grande Do Norte in the east. This coast can be called as North Atlantic Coast. From here, the eastern coast extends towards the south.
(iii) The northern coast is characterized by mouths of many rivers including the Amazon. Therefore, this region is a low-lying region.
(iv) On this coast lie the Marajo island, Marajo and Sao Marcos Bays.
(v) Marajo, a large coastal island located between River Amazon and River Tocantins, lies on the northern coast.
(vi) The eastern coast receives a large number of smaller rivers. The only major river which meets the Atlantic Ocean here is Sao Francisco.
(vii) The Brazilian Coast is characterized by a large number of beaches and sand dune complexes.
(viii) The Brazilian Coast is protected in some areas by coral reefs and atoll islands.
In simple words: Brazil's 7400 km coastline is divided into northern and eastern parts, with the low-lying northern coast featuring Amazon's mouth and Marajo Island, while the eastern coast has numerous small rivers, beaches, and protective coral reefs.

🎯 Exam Tip: When describing a country's coastline, include its length, main divisions, characteristic features (e.g., river mouths, islands, beaches, protective structures), and key rivers.

 

d. The Indian Peninsula:
(i) The area lying to the south of North Indian Plains and tapering towards the Indian Ocean is called Indian Peninsula.
(ii) It consists of many plateaus and hill ranges.
(iii) The Aravalis in the north west are the oldest fold mountains here.
(iv) It includes a series of plateaus bordering the Plains, Vindhyas and Satpuda ranges in the central part and the hilly regions of Western and Eastern Ghats.
In simple words: The Indian Peninsula, south of the North Indian Plains, is a triangular landmass composed of ancient plateaus, hill ranges like the Aravallis, Vindhyas, Satpudas, and the Western and Eastern Ghats.

🎯 Exam Tip: For a description of a major landform like the Indian Peninsula, focus on its location, general shape, and the key plateaus and mountain ranges it contains.

 

e. The Great Escarpment:
(i) An Escarpment is a long, steep slope especially one at the edge of a plateau.
(ii) Though the Great Escarpment occupies a I very small area, the nature of its slope and the effect it has on the climate makes is a separate physiographic region.
(iii) The eastern side of the Brazilian Highland is demarcated because of the escarpment.
(iv) In this region, the altitude of the escarpment is 790 m.
(v) In some regions, the height decreases gradually.
(vi) The escarpment is very steep particularly from Sao Paulo to Porto Alegre.
(vii) The escarpment acts as a barrier to the Southeast Trade Winds giving rise to the rainshadow area in the northeast part of the highlands. The region to the north of this area is called 'Drought Quadrilateral'.
In simple words: The Great Escarpment is a steep slope on the eastern edge of the Brazilian Highland, notable for its climatic impact, creating a rainshadow 'Drought Quadrilateral' by blocking Southeast Trade Winds.

🎯 Exam Tip: When describing a unique geographical feature like an escarpment, include its definition, location, physical characteristics (height, steepness), and its significant climatic influence.

 

4. Write geographical reasons:

Question a. There are no west flowing rivers in Brazil.
Answer:
(i) Many rivers originating from the terminal portion of the Brazilian highlands flow northwards to meet the Amazon river and finally terminate in the Atlantic Ocean.
(ii) Sao Francisco River flows 1000 kms towards the north and then turns east to join the Atlantic Ocean.
(iii) The rivers Parana, Paraguay and Uruguay originating from the southern part of Brazilian highlands flow southwest and enter Argentina.
(iv) The Amazon river, originating from the Andes mountain in the west flows eastwards to meet the Atlantic Ocean.
(v) Thus, there are no west flowing rivers in Brazil.
In simple words: Brazil lacks west-flowing rivers because its major rivers, like the Amazon and Sao Francisco, flow eastward or northward to the Atlantic, while southern rivers flow southwest into Argentina, dictated by the land's slope.

🎯 Exam Tip: To explain river flow patterns, focus on the topography, the origin and direction of major rivers, and their ultimate destination, showing how these factors determine drainage.

 

Question b. There are dissimilarities between the eastern and the western coast of India.
Answer:
(i) The western coast borders the Arabian Sea and the eastern coast borders the Bay of Bengal.
(ii) The western coast is by and large a rocky coast. At places, spurs starting from the Western Ghats have extended right up to the coast. The eastern coast has been formed as a result of depositional work of rivers.
(iii) The width of the western coast is narrow, whereas that of the eastern coast is wide.
(iv) Short and swift rivers originating from Western Ghats form estuaries on the western coast, whereas, because of the gentle slope the east flowing rivers flowing at low speed deposit sediments and form deltas on the eastern coast.
(v) Thus there are dissimilarities between the eastern and the western coasts of India.
In simple words: India's western coast is narrow, rocky, and forms estuaries due to swift rivers, bordering the Arabian Sea; while the eastern coast is wide, depositional, forms deltas from slower rivers, and borders the Bay of Bengal.

🎯 Exam Tip: When comparing two coastal regions, highlight differences in their bordering water bodies, geological formation, width, river characteristics (estuaries vs. deltas), and associated landforms.

 

Question c. There are fewer natural ports on the eastern coast of India.
Answer:
(i) The eastern coast borders the Bay of Bengal. It has been formed as a result of depositional work of rivers.
(ii) Many east flowing rivers have formed deltas at their mouth due to the gentle slope.
(iii) Sediments deposited by the river makes the coast shallow.
(iv) Therefore there are fewer natural ports on the eastern coast of India.
In simple words: The eastern coast of India has fewer natural ports because the gentle slope leads to extensive river deposition and delta formation, making the coastal waters shallow and unsuitable for deep harbors.

🎯 Exam Tip: Explaining the lack of natural ports requires connecting the coastal topography (gentle slope), river activity (sediment deposition, deltas), and its consequence on water depth and navigability.

 

Question d. As compared to Amazon, the pollution in river Ganga affects human life greatly.
Answer:
(i) The Amazon Basin is a sparsely populated region of Brazil. Unfavourable climate, heavy rainfall, inaccessibility and dense forest are the barriers for development of human settlements and industrialisation here.
(ii) On the other hand, the Ganga Plain region is one of the most densely populated regions of India.
(iii) Due to flat fertile plains, availability of water, suitable climate, dense human settlements have been established in this region.
(iv) Mining activities in the Amazon Basin causes pollution in the Amazon River, whereas industrial and domestic sewage adds to the pollution of River Ganga. Thus as compared to Amazon, the pollution in River Ganga affects human life greatly, as the Ganga Plain is more densely populated as compared to the Amazon Plains.
In simple words: Pollution in the Ganga River impacts human life more severely than in the Amazon due to the Ganga Plain being a densely populated region with extensive settlements and industries, whereas the Amazon Basin is sparsely populated with fewer human activities contributing to pollution.

🎯 Exam Tip: When comparing the impact of pollution on human life between two regions, consider population density, level of development, and types of human activities in each area as key differentiating factors.

 

5. Identify The Correct Group:

Question a. The order of the physiographic units in Brazil while going from North West to South East
(i) Parana River basin – Guyana Highlands – Brazilian Highlands
(ii) Guyana Highlands – Amazon river basin – Brazilian Highlands
(iii) Coastal plains – Amazon River basin – Brazilian Highlands
Answer: (ii) Guyana Highlands – Amazon river basin – Brazilian Highlands
In simple words: Moving from North West to South East in Brazil, one would typically encounter the Guyana Highlands first, then the Amazon River Basin, and finally the Brazilian Highlands.

🎯 Exam Tip: For questions about the order of physiographic units, visualize the map and trace the direction specified, identifying the major landforms in sequence.

 

Question b. These Rivers of Brazil are north-flowing
(i) Juruaka - Xingu – Aragua
(ii) Negro - Branco – Paru
(iii) Japura - Jurua – Purus
Answer: (ii) Negro - Branco – Paru
In simple words: Among the options, the Negro, Branco, and Paru rivers are notable for flowing northwards within Brazil.

🎯 Exam Tip: Knowing the general flow direction of major rivers within a country is important for understanding its drainage system.

 

Question c. The order of plateaus of India from south to north.
(i) Karnataka – Maharashtra – Bundelkhand
(ii) Chhota Nagpur – Malwa – Marwad
(iii) Telangana – Maharashtra – Marwad
Answer: (i) Karnataka – Maharashtra – Bundelkhand
In simple words: Arranging India's plateaus from south to north, the sequence would be Karnataka Plateau, followed by Maharashtra Plateau, and then Bundelkhand Plateau.

🎯 Exam Tip: For geographical ordering questions, it's helpful to mentally map the locations of the features from south to north or west to east.

 

Class 10 Geography Chapter 3 Physiography And Drainage Intext Questions And Answers

Observe the map and answer the following questions.

ℹ️ चित्र व्याख्या (Diagram Explanation): यह भारत का एक भौतिक मानचित्र है जो देश की स्थलाकृति को दर्शाता है, जिसमें हिमालय, उत्तरी भारतीय मैदान, प्रायद्वीप, तटीय मैदान और द्वीप समूह शामिल हैं। मानचित्र विभिन्न ऊँचाई के पैमाने को किलोमीटर में और समुद्र तल से मीटर में दिखाता है, जो विभिन्न भौगोलिक क्षेत्रों की ऊँचाई को समझने में मदद करता है। यह प्रमुख पर्वत श्रृंखलाओं और नदियों की भी पहचान करता है।

Question 1. In which direction does the region with an altitude of more than 6000m lie in India ?
Answer: The region with an altitude of more than 6000m lies part of India towards the north and north eastern.
In simple words: Regions in India with altitudes above 6000m are found in the northern and north-eastern parts, primarily corresponding to the Himalayas.

🎯 Exam Tip: When interpreting a physical map, pay close attention to the altitude scale and color coding to identify regions based on their elevation.

 

Physiography And Drainage Questions And Answers Question 2. Look for the south-flowing river in the peninsular region. In which river basin does it lie?
Answer: River Wardha and Vainganga are the south flowing river in the peninsular region. These lie in the Godavari river basin.
In simple words: The Wardha and Vainganga rivers are south-flowing rivers in the peninsular region and are part of the Godavari river basin.

🎯 Exam Tip: Identifying river flow direction and their associated basins on a map or from geographical knowledge is crucial for drainage pattern questions.

 

Physiography And Drainage Question 3. In which direction is the slope of the region in the north shown in dark green.
Answer: The region in the north shown in dark green is the North Indian Plain. It slopes towards the east.
In simple words: The North Indian Plain, marked in dark green on the map, generally slopes towards the east.

🎯 Exam Tip: Determining the slope of a plain often involves observing the direction of river flow within that region, as rivers follow the gradient.

 

Geography Class 10 Chapter 3 Physiography And Drainage Question 4. Make a list of plateaus located in between Aravalli ranges and Chhota Nagpur Plateau.
Answer: Plateaus located in between Aravalli ranges and Chhota Nagpur Plateau are Mewad Plateau, Bundelkhand, Baghelkhand and Malwa Plateau.
In simple words: Between the Aravalli ranges and the Chhota Nagpur Plateau, one can find plateaus such as Mewad, Bundelkhand, Baghelkhand, and Malwa.

🎯 Exam Tip: For questions about the location of landforms, having a good mental map of India's plateaus and their relative positions is very helpful.

 

Physiography And Drainage Of India And Brazil Notes Question 5. Name the peak shown in the Eastern Ghats.
Answer: Mahendragiri (1600m) and Malayagiri (1187m) are the peak shown in the Eastern Ghats.
In simple words: Mahendragiri (1600m) and Malayagiri (1187m) are prominent peaks located in the Eastern Ghats.

🎯 Exam Tip: Knowing the names and approximate heights of significant peaks in major mountain ranges is useful for detailed geographical knowledge.

 

Physiography And Drainage 10th Question 6. Which mountains demarcate the deep plains of Brahmaputra?
Answer: Dafla Hills, Naga Hills, Garo, Khasi and Jaintia Hills demarcate the deep plains of Brahmaputra.
In simple words: The Brahmaputra plains are demarcated by surrounding hills like the Dafla Hills, Naga Hills, Garo, Khasi, and Jaintia Hills.

🎯 Exam Tip: Identifying the geographical features (e.g., hills, mountains) that border or define a plain helps in understanding regional boundaries and topography.

 

Physiography And Drainage Class 10 Question 7. Give the relative location of the Nilgiri Hills.
Answer: Nilgiri Hills lie at the convergence of Western Ghats and Eastern Ghats in the southern part of the Deccan Pleateau.
In simple words: The Nilgiri Hills are situated in the southern part of the Deccan Plateau, specifically where the Western Ghats and Eastern Ghats meet.

🎯 Exam Tip: For relative location questions, always mention at least two reference points or surrounding features to accurately pinpoint the place.

10th Physiography Chapter 3 In Marathi Question Answer Question 8. In which direction does the height of Sahyadri hills increase?
Answer: The height of Sahayadri hills increase towards the south.
In simple words: The Sahyadri hills, also known as the Western Ghats, get taller as you move from north to south.

🎯 Exam Tip: Understanding the geographical features and their orientation helps in scoring marks in questions related to Indian physiography.

Question 9. The Vindhyas act as a water divide between which two river basins?
Answer: The Vindhyas acts as a water divide between Ganga river system and Narmada river system.
In simple words: The Vindhya mountain range separates the area drained by the Ganga River from the area drained by the Narmada River.

🎯 Exam Tip: Knowing key water divides is crucial for questions on India's drainage systems.

Observe the map and answer the following questions.
ℹ️ चित्र व्याख्या (Diagram Explanation): यह ब्राजील का एक भौतिक मानचित्र है, जिसका शीर्षक 'PHYSIOGRAPHY' है। यह देश की स्थलाकृति को विभिन्न रंगीन क्षेत्रों के माध्यम से दर्शाता है, जो अक्षांश और देशांतर ग्रिड के साथ-साथ गुयाना हाइलैंड्स, ब्राज़ीलियाई हाइलैंड्स, अमेज़न नदी बेसिन और पंतानल जैसे प्रमुख भौगोलिक क्षेत्रों को उजागर करता है। मानचित्र में मुख्य नदियों और अटलांटिक महासागर की सीमा भी प्रदर्शित है।
ℹ️ चित्र व्याख्या (Diagram Explanation): यह ब्राजील का एक और भौतिक मानचित्र खंड है, जिसका शीर्षक 'Physical' है। यह मुख्य रूप से ब्राजील के दक्षिणी हिस्से पर केंद्रित है और विभिन्न ऊंचाइयों (मीटर में) को दर्शाने के लिए एक अलग सूचकांक प्रदान करता है, जिसमें दलदली भूमि को भी दर्शाया गया है। मानचित्र में एस्कार्पमेंट, कैसिनो बीच और पम्पास जैसे क्षेत्र शामिल हैं, जो इस क्षेत्र की विविधतापूर्ण भू-आकृति को प्रदर्शित करते हैं।

Question 1. What is the range of altitude of the Amazon river basin?
Answer: The range of altitude of the Amazon river basin is from 0 metres to 200 metres.
In simple words: The Amazon river basin generally lies at a low elevation, ranging from sea level up to 200 meters.

🎯 Exam Tip: Careful observation of map legends and altitude scales is essential for accurately interpreting geographical features.

Question 2. Between which two highlands is the Amazon river basin located?
Answer: The Amazon river basin is located between the Guyana Highlands and the Brazilian Highlands.
In simple words: The Amazon river basin sits geographically between the Guyana Highlands to its north and the Brazilian Highlands to its south.

🎯 Exam Tip: Identifying the relative location of major physiographic divisions is a common question type.

Question 3. Observe the region with the altitude of 500 to 1000 metres. Describe the locational extent of this region in yellow with reference to the direction.
Answer: The region in yellow represents the Brazilian Highlands. They cover most of the eastern and southern parts of Brazil.
In simple words: The yellow areas on the map, indicating elevations between 500 and 1000 meters, mostly comprise the Brazilian Highlands located in Brazil's eastern and southern sections.

🎯 Exam Tip: Practicing directional analysis on maps helps in accurately describing geographical extents.

Question 4. What do the isolated regions shown in yellow indicate?
Answer: The isolated region shown in yellow indicate the Brazilian Highlands or the Brazilian Plateau or the Brazilian Shield.
In simple words: The separate yellow areas on the map represent parts of the Brazilian Highlands, also known as the Brazilian Plateau or Shield.

🎯 Exam Tip: Recognizing alternative names for geographical features demonstrates a deeper understanding.

Question 5. Besides the Amazon river basin, where else do you find regions with an altitude of less than 200m?
Answer: Besides the Amazon basin the other regions with an altitude of less than 200m are the Pampas, Parana and Paraguay basin, as well as the Eastern and Northen coastal region.
In simple words: Apart from the Amazon basin, low-altitude areas (below 200m) in Brazil include the Pampas, the Parana and Paraguay basins, and the eastern and northern coastal regions.

🎯 Exam Tip: Comprehensive map analysis requires identifying all instances of a specific feature, not just the most obvious one.

Question 6. Describe the plateau region with height of 200 to 500m through which tributaries of Amazon flow in your own words.
Answer: The highlands here gradually slope towards north and slopes are not very steep. The tributaries of Amazon, eg. Xingu river flowing through this region make rapids and waterfalls.
In simple words: In this plateau region (200-500m high), the land gently slopes northward, allowing Amazon tributaries like the Xingu River to form rapids and waterfalls as they flow.

🎯 Exam Tip: Connecting altitude ranges with river characteristics (rapids, waterfalls) shows analytical skills.

Question 10. Enumerate the characteristics of the Western Ghats.
Answer:
(i) The Western Ghats are a continuous chain of mountains extending from north to south for about 1600 km. They run parallel to the west cost of India.
(ii) In the north, i.e., in Maharashtra and Karnataka these mountain ranges are referred as Sahyadris and in the south they are referred as Annamalai hills.
(iii) The height of the Western Ghats increases towards the south.
(iv) These hill ranges comprise of many peaks such as Kalsubai Peak (1646 m) located to the north and Anaimudi Peak (2695 m) located to the south of Western Ghats.
(v) The highest peak of Western Ghats is Anaimudi Peak (2695 m) located in Annamalai hills.
(vi) The western slope of the Western Ghats is steep while the eastern slope is gentle
(vii) The Western Ghats acts as a water divide for the rivers flowing towards Arabian Sea and Bay of Bengal.
In simple words: The Western Ghats are a long, continuous mountain chain on India's west coast, known as Sahyadris in the north and Annamalai hills in the south, with their height generally increasing towards the south. They act as a major water divide, separating west-flowing rivers from east-flowing ones.

🎯 Exam Tip: Detailed knowledge of key mountain ranges, including their names, extent, and role as water divides, is crucial for descriptive answers.

Question 11. Compare the Eastern Ghats and Western Ghats
Answer:

S.no	Eastern Ghats	Western Ghats
(i)	The Eastern Ghats run along the eastern coast of India in the north east to south west direction.	The Western Ghats also known as Sahyadris run in the north-south direction along the western coast of India.
(ii)	It forms the eastern boundary of the Deccan Plateau.	It forms the western boundary of Deccan Plateau.
(hi)	It is not continuous, but is broken at many places by rivers like Godavari and Krishna.	The Western Ghats is like a continuous wall like structure, but is broken at same places by passes.
(iv)	Comparatively less number of rivers originate from the Eastern Ghats.	It is a source of many westward and eastward flowing rivers.
(v)	The average altitude of the Eastern Ghats is low (600 mts) but they are wider than Western Ghats.	The average altitude of the Western Ghats is high (900-1600 mts) but it is narrower in width than Eastern Ghats.
(vi)	Highest peak of Eastern Ghats is Jindhagada (1690 m)	Highest peak of Western Ghats is Anaimudi Peak (2695 m)

In simple words: The Eastern Ghats are discontinuous and lower, running along India's east coast, forming the eastern boundary of the Deccan Plateau. In contrast, the Western Ghats are a continuous, higher mountain range along the west coast, forming the Deccan Plateau's western boundary, and act as a major source of rivers.

🎯 Exam Tip: When comparing geographical features, focus on their continuity, altitude, river origins, and their role in defining land boundaries.

Question 12. Why are the Western Ghats called a water divide ?
Answer: The Western Ghats divide the basins of the west flowing rivers like Vaitama, Mandovi, etc. flowing towards the Arabian sea from those of the east flowing rivers like Godavari, Krishna, etc. flowing towards the Bay of Bengal.
In simple words: The Western Ghats are called a water divide because they separate rivers that flow west into the Arabian Sea from those that flow east into the Bay of Bengal.

🎯 Exam Tip: Understanding the concept of a water divide is fundamental to studying drainage systems and river patterns.

Answer the following Questions:

Question 1. Differentiate between the Physiography of Brazil and India.
Answer:

The Physiography of India	The Physiography of Brazil
(i) The physiographic divisions of India are the Himalayas, the North Indian Plains and the Peninsula, Coastal Plains, and the Islands.	(i) The physiographic divisions of Brazil are: The Highlands, The Great Escarpment, The Coastal region, The Plains and The Islands.
(ii) There are long and high mountain ranges in northern and north eastern part of India in the form of Himalayan ranges. The Western Ghats and the Eastern Ghats lie to the west and east of the Peninsular region. The average altitude of the Greater Himalayas is around 6000m.	(ii) In Brazil there are no high and continuous mountain ranges. The eastern side of the Highlands is demarcated because of the Escarpment. The Great Escarpment located in south-eastern part of the Highlands has an altitude of 790m in this region with the height gradually decreasing.
(iii) In India the Plains occupy a wide area in the north. The Plains lie between the Himalayas in the North and the Peninsula in the South. It extends from Rajasthan in the West to Assam in the East. The Coastal Plains lie to the west and east of the Peninsula.	(iii) In Brazil the Amazon Basin in the North and the Parana-Paraguay Basin to the South West constitutes the Plains. Also a narrow coastal plain is confined to the North and the East.
(iv) The Peninsular Plateau region of India lies to the South of the North Indian Plains and is divided into 2 groups, the The Central Highlands and the Deccan Plateau.	(iv) In Brazil the Highlands occupy an extensive area in the South and is described as the Brazilian Highlands or the Brazilian Shield. Also to the North lies the Guyana Highland.
(v) The islands in India are either volcanic or coral in origin.	(v) The islands in Brazil are mainly depositional and some of them are coral in nature.

In simple words: India's physiography includes high Himalayas, vast northern plains, a peninsula with coastal plains, and islands, featuring towering mountains like the Himalayas. Brazil's physiography has Highlands, a Great Escarpment, coastal regions, plains, and islands, but lacks continuous high mountain ranges like India's.

🎯 Exam Tip: When differentiating, focus on the presence/absence of major mountain ranges, types of plains, and the origin of islands in both countries.

Question 2. What measures are being taken to control pollution in the rivers of India?
Answer: Rivers in India are getting polluted due to the sewage and effluents being added to it and thus affecting its quality. Following measures are being taken to control pollution in the rivers in India.
• Treating of the sewage before draining it into the rivers.
• Reducing the use of pesticides and insecticides as they drain into the water sources and pollute it.
• Discharge of industrial effluents into rivers without proper treatment is now controlled.
• Reusing the water for different purposes which reduces the overuse and pollution of water.
• Carrying out the cleaning and purification of the river water under the National River Conservation Plan (NRCP).
• Creating awareness in the people about the importance of rivers and harmful effects of pollution.
• Setting up of Pollution Control Boards (PCB) at the state and national level to curb pollution.
In simple words: To combat river pollution in India, steps include treating sewage and industrial waste, reducing pesticide use, reusing water, implementing the National River Conservation Plan, and raising public awareness through Pollution Control Boards.

🎯 Exam Tip: Listing specific governmental plans and practical measures is key to comprehensive answers on environmental issues.

Question 3. Explain the characteristics of the North Indian Plains.
Answer:
(i) This division lies between Himalayan Mountains in the north and the Peninsula in the south.
(ii) Similarly, it extends from Rajasthan and Punjab in the west to Assam in the east.
(iii) It is mostly a flat low lying area.
(iv) The North Indian Plains are divided into two parts. The part lying to the east of the Aravalis is the basin of the river Ganga and is therefore known as the Ganga Plains. It slopes eastward.
(v) Most of the Indian state of West Bengal and Bangladesh together constitute the delta of Ganga-Brahmaputra system. It is known as the Sunderbans. It is considered to be the world's largest delta.
(vi) The western part of the North Indian Plains is occupied by desert known as the Thar Desert or Marusthali. Most of Rajasthan is occupied by this desert.
(vii) To the north of the desert lie the plains of Punjab.
(viii) This region is spread to the west of Aravalis and Delhi ranges. These plains have formed as a result of the depositonal work by river Satluj and its tributaries. The slope of the plains is towards the west.
(ix) Because the soil here is very fertile, agriculture is largely practised in this region.
In simple words: The North Indian Plains, a flat, fertile region between the Himalayas and the Peninsula, stretch from Rajasthan to Assam. They include the eastward-sloping Ganga Plains, the world's largest Sunderbans delta, and the western Thar Desert with Punjab plains to its north, all formed by river deposits, making the area highly agricultural.

🎯 Exam Tip: When describing a physiographic division, cover its location, extent, subdivisions, formation, and key economic activities like agriculture.

Question 4. What could be the reasons behind the formation of swamps in the extensive continental location of Pantanal?
Answer: Pantanal is one of the largest wetlands in the world, lying in the south west part of the highland areas.
It is a region of swamps and marshes in northwestern part of Mato Grosso do Sul in Brazil and it extends into Argentina too.
This region is drained by the river Paraguay and its tributaries.
They collect the water from the highland areas and deposit the sediments in the low lying Pantanal region.
Pantanal is a gently sloped basin which is submerged throughout the year due to the filling of the sediments and water in the depression area of the Pantanal.
In simple words: The Pantanal's vast swamps form because it's a gently sloped basin in southwestern Brazil, where the Paraguay River and its tributaries deposit sediments and water from highland areas, keeping it submerged year-round.

🎯 Exam Tip: Explaining the formation of geographical features requires detailing the contributing physical processes and locations.

Question 5. Which are the major water divides of India give examples.
Answer: A mountain or an upland which separates two drainage basins is known as a Water Divide. The major Water Divides of India are :
Western Ghats: The Western Ghats acts as a water divide and separates the west flowing rivers like Zuari, Mandvi, Vaitama draining into the Arabian Sea, from the east flowing rivers like the Godavari, Krishna and Kaveri draining into the Bay of Bengal.
Vindhya ranges: It divides the drainage basin of the River Ganga and the River Narmada.
Aravali ranges: The Aravali ranges separate the west flowing river Luni from the east flowing river Banas.
Satpuda ranges: The Satpudas separate the Narmada drainage basin and the Tapi drainage basin.
In simple words: India's major water divides are elevated regions like the Western Ghats (separating Arabian Sea and Bay of Bengal rivers), Vindhya ranges (Ganga and Narmada basins), Aravali ranges (Luni and Banas rivers), and Satpuda ranges (Narmada and Tapi basins).

🎯 Exam Tip: Memorizing specific examples of water divides and the river basins they separate is important for detailed answers.

(Colours of Both) Use the Physical Maps of India, Brazil and the Indices to Answer the Following:

Question 1. In which parts do the areas with highest altitude lie in both the countries, respectively?
Answer: In India, the Himalayas occupying the northern and the north eastern part name highest altitude. In Brazil, the Escarpment occupying the southern part has highest altitude and the highest peak Pico de Neblina lies to the north in the Guyana Highlands.
In simple words: India's highest altitudes are found in the northern and northeastern Himalayas, while in Brazil, the highest areas are along the Escarpment in the south and the Pico de Neblina peak in the northern Guyana Highlands.

🎯 Exam Tip: Always refer to the map and its legend to accurately identify and compare features like highest altitudes in different regions.

Question 2. In which country is the range of altitude higher?
Answer: India has higher range of altitude as compared to Brazil.
In simple words: India has a much greater variation in altitude, with higher peaks and deeper valleys, compared to Brazil.

🎯 Exam Tip: Comparing ranges requires looking at both the minimum and maximum altitudes to determine overall variation.

Question 3. Compare the highest range of altitudes given in both the countries. What difference do you see?
Answer: The highest range of altitude in Brazil is more than 1000m, whereas in India, the highest range of altitude is more than 8000 m.
In simple words: Brazil's highest altitude is just over 1000 meters, while India boasts altitudes exceeding 8000 meters, a significant difference mainly due to the Himalayas.

🎯 Exam Tip: Quantifying differences in altitude using numerical data from the map's legend makes the comparison precise.

Question 4. In which direction is the slope of the Amazon river basin region?
Answer: The slope of Amazon Basin is towards the east.
In simple words: The Amazon river basin gently slopes eastward, guiding the river's flow towards the Atlantic Ocean.

🎯 Exam Tip: Identifying river flow direction is key to understanding the slope of a basin.

Question 5. In which direction is the slope of the Deccan Plateau of India ?
Answer: The slope of Deccan Plateau is towards the east.
In simple words: The Deccan Plateau in India generally slopes towards the east.

🎯 Exam Tip: Recognizing the general slope of major plateaus is important for understanding drainage patterns.

Question 6. Tell the regions of rain shadow in both the countries.
Answer: The rain shadow regions of India are eastern side of Western Ghats on the Deccan Plateau and western side of Eastern Ghats. The rain shadow region of Brazil lies in the north eastern part of the Great Escarpment.
In simple words: In India, rain shadow areas are found on the eastern side of the Western Ghats and the western side of the Eastern Ghats; in Brazil, it's in the northeastern part of the Great Escarpment.

🎯 Exam Tip: Understanding orographic rainfall and the location of mountain ranges helps pinpoint rain shadow regions.

Question 7. Write a comparative note on the basins of Ganga and Amazon river. You may consider following points for the comparison.
Answer:

Points for comparison	Ganga River Basin	Amazon River Basin
(1) Size of catchment area	Spreading across the northern and eastern parts of India the Ganga River basin has a total catchment area of 10,16,124 sq. km.	Spreading across the northern parts of Brazil the Amazon River basin has a total catchment area of 70,50,000 sq. km.
(2) Their relative location within respective countries	The Ganga river basin lies to the south of the Himalayas in the North Indian plains and also occupies the northern part of the peninsula, i.e. the Central Highlands.	The Amazon river basin occupies the entire region in the north of Brazil right from the Guyana Highlands to the northern part of the Brazilian Highlands.
(3) Headwater regions of rivers.	Ganga river originates from the Gangotri Glacier in Uttarakhand.	The Amazon river originates from the eastern slopes of Andes Mountains in Peru.
(4) Orientation of the rivers	The Ganga flows eastwards passing through the states of Uttar Pradesh, Bihar and West Bengal and terminates into the Bay of Bengal. One of its branch enters into Bangladesh.	The Amazon river flows from the west to the east entirely through the states of Amazonas and Para in northern Brazil and terminates into the North Atlantic Ocean.
(5) Major tributaries and their orientation	(i) Yamuna is the major right bank tributary of the river Ganga originating from the Yamunotri Glacier and meeting river Ganga at Allahabad. Other right bank tributaries originating from the Peninsula like river Chambal, Ken, Shon, Damodar, etc. flow northwards and join river Ganga. (ii) The left bank tributaries like river Gomati, Ghagra, Gandak, and Kosi flow south and meet river Ganga.	(i) Rivers like Negro, Branka, Paru flow south from the Guyana Highlands and meet the Amazon river as left bank tributaries. (ii) River Madeira, Juruaka, Xingu and Tocantins flow northwards and join the Amazon river at its right bank.
(6) Any other point(s)	(i) The Ganga river basin is densely populated due to the deposition of fertile alluvial soil and plenty of water available for agriculture. (ii) Fertile plains and deltas are formed. (iii) River Ganga is 2525 km long. (iv)Water discharge is 16,648 cu.m, per sec.	(i) Amazon river basin is sparsely populated due to dense equatorial rain forests, unfavourable climate and lack of transport links. (ii) No deltas are formed but islands have developed along the mouth of the Amazon River. (iii) River Amazon is 6400 km long. (iv) Water discharge is 2,09,000 cu.m, per sec.

In simple words: The Ganga basin, smaller and densely populated, originates from the Gangotri Glacier and flows east through northern India to the Bay of Bengal, forming fertile plains. The Amazon basin, much larger and sparsely populated due to rainforests, originates in the Andes and flows east across northern Brazil to the North Atlantic, notable for its high discharge and lack of a delta.

🎯 Exam Tip: When comparing river basins, consider their size, location, origin, flow direction, major tributaries, unique features, population density, and discharge volume.

Question 8. Distinguish between: Eastern Ghats and Western Ghats.
Answer:

S.no	Eastern Ghats	Western Ghats
(i)	The Eastern Ghats run along the eastern coast of India in the north east to south west direction.	The Western Ghats also known as Sahyadris run in the north-south direction along the western coast of India.
(ii)	It forms the eastern boundary of the Deccan Plateau.	It forms the western boundary of Deccan Plateau.
(hi)	It is not continuous, but is broken at many places by rivers like Godavari and Krishna.	The Western Ghats is like a continuous wall like structure, but is broken at same places by passes.
(iv)	Comparatively less number of rivers originate from the Eastern Ghats.	It is a source of many westward and eastward flowing rivers.
(v)	The average altitude of the Eastern Ghats is low (600 mts) but they are wider than Western Ghats.	The average altitude of the Western Ghats is high (900-1600 mts) but it is narrower in width than Eastern Ghats.
(vi)	Highest peak of Eastern Ghats is Jindhagada (1690 m)	Highest peak of Western Ghats is Anaimudi Peak (2695 m)

In simple words: The Eastern Ghats are discontinuous and lower, situated on India's east coast, while the Western Ghats are a continuous, higher range along the west coast. The Eastern Ghats are wider and have fewer river origins, whereas the Western Ghats are narrower and a source for many rivers.

🎯 Exam Tip: When distinguishing between two features, use a tabular format to clearly highlight contrasting characteristics such as continuity, altitude, location, and hydrological role.

Class 10 Geography Chapter 3 Physiography and Drainage Additional Important Questions and Answers

Choose the Correct Option and Rewrite the Statements:

Question 1. The part of North Indian Plains lying to the east of the Aravalis is called _______.
(a) Ganga Plains
(b) Brahmaputra Plains
(c) Kaveri Plains
(d) Krishna Plains
Answer: (a) Ganga Plains
In simple words: The North Indian Plains located to the east of the Aravali mountains are known as the Ganga Plains.

🎯 Exam Tip: Multiple-choice questions often test precise geographical locations and their corresponding names.

Question 2. The delta of Ganga-Brahmaputra system is called _______.
(a) Sunderbans
(b) Parnaiba
(c) Amazon
(d) Marajo
Answer: (a) Sunderbans
In simple words: The large delta formed by the Ganga and Brahmaputra rivers is famously known as the Sunderbans.

🎯 Exam Tip: Knowing the names of significant geographical formations, like the world's largest delta, is important.

Question 3. The western part of the North Indian Plains occupied by deserts known as _______.
(a) Thar Desert or Marusthali
(b) Gobi Desert
(c) The Deccan Thorn scrub Desert
(d) Spiti Valley Cold Desert
Answer: (a) Thar Desert or Marusthali
In simple words: The desert region in the western North Indian Plains is called the Thar Desert, also known as Marusthali.

🎯 Exam Tip: Identify alternative names for major geographical features to avoid confusion.

Question 4. The area lying to the south of North Indian Plains and tapering towards Indian Ocean is called _______.
(a) Himalayas
(b) Peninsula
(c) Western Ghats
(d) Indira Point
Answer: (b) Peninsula
In simple words: The landmass south of the North Indian Plains that narrows towards the Indian Ocean is referred to as the Indian Peninsula.

🎯 Exam Tip: Understand the defining characteristics of major landforms like the Peninsula to correctly identify them.

Question 4. The in the north west of Peninsular India are the oldest fold mountains.
(a) Aravalis
(b) Satpudas
(c) Karakoram range
(d) Vindhya range
Answer: (a) Aravalis
In simple words: The Aravali mountains, located in the northwest of Peninsular India, are recognized as some of the world's oldest fold mountains.

🎯 Exam Tip: Knowing the age and formation type of mountain ranges is important for physical geography.

Question 6. The _______ rivers in India are seasonal in nature.
(a) Northern
(b) Peninsular
(c) Himalayan
(d) Mountainous
Answer: (b) Peninsular
In simple words: Rivers in Peninsular India are typically seasonal, meaning their water flow depends heavily on monsoon rains, unlike the perennial Himalayan rivers.

🎯 Exam Tip: Differentiate between perennial and seasonal rivers based on their origin and water source.

Question 6. River _______ is the second largest river system in India in terms of catchment area.
(a) Krishna
(b) Godavari
(c) Brahmaputra
(d) Ganga
Answer: (b) Godavari
In simple words: The Godavari River holds the distinction of being India's second largest river system based on its catchment area.

🎯 Exam Tip: Remembering the ranking of major rivers by length or catchment area is a common factual question.

Question 7 The major river of Peninsula flows through the states of Karnataka and Tamil Nadu,
(a) Kaveri
(b) Indus
(c) Ganga
(d) Brahmaputra
Answer: (a) Kaveri
In simple words: The Kaveri River is a significant peninsular river that flows through the Indian states of Karnataka and Tamil Nadu.

🎯 Exam Tip: Associate major rivers with the states they flow through in Peninsular India for geographical accuracy.

Question 8. India is blessed with a long coastline extending for approximately
(a) 8000 km
(b) 5000 km
(c) 7500 km
(d) 7900 km
Answer: (c) 7500 km
In simple words: India's total coastline stretches for about 7500 kilometers, touching various states and union territories.

🎯 Exam Tip: Knowing the approximate length of India's coastline is a common factual question in geography exams.

Question 9. The islands in the Arabian sea are called ________ islands.
(a) Andaman and Nicobar
(b) Barren
(c) Marajo
(d) Lakshadweep
Answer: (d) Lakshadweep
In simple words: The Lakshadweep Islands are a group of coral islands located in the Arabian Sea off the southwest coast of India.

🎯 Exam Tip: Differentiate between the island groups in the Arabian Sea and the Bay of Bengal for clarity.

Question 10. ______ is the southernmost range of the Himalayas.
(a) Himadri
(b) Lesser Himalayas
(c) Siwaliks
(d) Kumaon Himalayas
Answer: (c) Siwaliks
In simple words: The Siwaliks are the outermost and youngest range of the Himalayas, forming the foothills.

🎯 Exam Tip: Understanding the parallel ranges of the Himalayas (Greater, Lesser, Siwaliks) from north to south is crucial for physiographic knowledge.

Question 12. The Islands in the Bay of Bengal are called ________ islands.
(a) Andaman and Nicobar
(b) Maldives
(c) Corsela
(d) Lakshadweep
Answer: (a) Andaman and Nicobar
In simple words: The Andaman and Nicobar Islands are a group of islands located in the Bay of Bengal, known for their strategic location and biodiversity.

🎯 Exam Tip: Remember to distinguish between the island groups on the east and west coasts of India.

Question 13. The highest peak of Brazil is called ______
(a) Pico de Neblina
(b) Mount Everest
(c) Kanchenjunga
(d) Mount Roraima
Answer: (a) Pico de Neblina
In simple words: Pico de Neblina is the highest mountain peak in Brazil, located on the border with Venezuela.

🎯 Exam Tip: Factual questions about geographical extremes like highest peaks are common.

Question 14. The ______ acts as a barrier to the south-east trade winds giving rise to the rain shadow area in the north - eastern part of the highlands in Brazil.
(a) Coastal Plains
(b) Escarpment
(c) Plateaus
(d) Pantanal wetlands
Answer: (b) Escarpment
In simple words: The Great Escarpment in Brazil blocks the southeast trade winds, creating a rain shadow effect in the northeastern highlands.

🎯 Exam Tip: Understand the role of physical features like escarpments in influencing regional climate patterns and rainfall distribution.

Question 15. Amazon collects its headwaters from the eastern slopes of Andes mountains in
(a) Uruguay
(b) Peru
(c) Ecuador
(d) Columbia
Answer: (b) Peru
In simple words: The Amazon River originates in the Andes Mountains within Peru.

🎯 Exam Tip: Knowing the origin points of major world rivers is a key geographical fact.

Question 16. The Island is the only active volcano of India.
(a) Majuli
(b) St. Mary's
(c) Barren
(d) Lakshadweep
Answer: (c) Barren
In simple words: Barren Island, located in the Andaman Sea, is India's only confirmed active volcano.

🎯 Exam Tip: Memorize unique geographical features of India, such as its only active volcano.

Question 17. ______ is a large coastal island located between the mouths of river Amazon and river Tocantins,
(a) Pantanal
(b) Plata
(c) Paraniba
(d) Marajo
Answer: (d) Marajo
In simple words: Marajo Island is a significant coastal island situated at the confluence of the Amazon and Tocantins rivers, near the Atlantic Ocean.

🎯 Exam Tip: Understanding specific geographical features, especially unique islands at river mouths, is important.

Question 18. ______ is one of the largest wetlands in the world.
(a) Plata
(b) Marajo
(c) Pantanal
(d) Paraniba
Answer: (c) Pantanal
In simple words: The Pantanal, a vast tropical wetland, is recognized as one of the world's largest wetland areas.

🎯 Exam Tip: Key facts about global geographical features, like the largest wetlands, are frequently tested.

Question 19. The Paraguay and the Parana rivers form the catchment of River in Argentina.
(a) Paraniba
(b) Plata
(c) Pantanal
(d) Marajo
Answer: (b) Plata
In simple words: The Paraguay and Parana rivers combine to form the extensive catchment area of the Rio de la Plata in Argentina.

🎯 Exam Tip: Connecting major rivers to their larger basin systems and countries is essential geographical knowledge.

Question 20. ______ River enters the Atlantic Ocean near Salvador town.
(a) Marajo
(b) Puraguaco
(c) Plata
(d) Parana
Answer: (b) Puraguaco
In simple words: The Puraguaco River flows into the Atlantic Ocean near Salvador, a major coastal city.

🎯 Exam Tip: Specific details about lesser-known rivers and their termination points can appear in exams.

Question 21. The river ______ flows through Pakistan and then meets the Arabian Sea.
(a) Ganga
(b) Chambal
(c) Indus
(d) Brahmaputra
Answer: (c) Indus
In simple words: The Indus River originates in Tibet, flows through India, and is a vital river system for Pakistan before emptying into the Arabian Sea.

🎯 Exam Tip: Understand the major river systems of India and their flow paths, including those shared with neighboring countries.

Question 22. Ganga receives as its tributary in its lower reaches in Bangladesh.
(a) Satluj
(b) Indus
(c) Brahmaputra
(d) Ravi
Answer: (c) Brahmaputra
In simple words: In Bangladesh, the Brahmaputra River joins the Ganga (known as Padma there) to form a massive river system.

🎯 Exam Tip: Recognize the confluence of major rivers, especially when their names change across international borders.

Identify the correct group:

Question 1. Parallel ranges of Himalayas from south to north
(i) Siwaliks - Lesser Himalayas - Greater Himalayas
(ii) Trans Himalayas - Kumaun - Shiwaliks
(iii) Kashmir Himalayas - Kumaun Himalayas - Assam Himalayas
Answer: Siwaliks - Lesser Himalayas - Greater Himalayas
In simple words: The correct order of Himalayan ranges from south to north is Siwaliks, followed by the Lesser Himalayas, and then the Greater Himalayas.

🎯 Exam Tip: Clearly know the sequential arrangement of the Himalayan ranges to avoid confusion.

Question 2. Physiographic division of India from north to south
(i) The Himalayas - The North Indian Plains - The Peninsula
(ii) The Peninsula - The Great Escarpment - The North Indian Plains
(iii) Coastal Plains - Islands - Himalayas
Answer: The Himalayas - The North Indian Plains - The Peninsula .
In simple words: India's major physiographic divisions, when listed from north to south, are the Himalayas, followed by the vast North Indian Plains, and then the Peninsular Plateau.

🎯 Exam Tip: Understanding the major physiographic divisions and their north-south arrangement is fundamental to Indian geography.

Question 3. Physiographic divisions of Brazil
(i) The Himalayas - The North Indian Plain - The Peninsula
(ii) The Highlands - The Great Escarpment - The Plains
(iii) Islands - Peninsula - Coastal Plains
Answer: The Highlands - The Great Escarpment - The Plains
In simple words: Brazil's main physiographic divisions include the elevated Highlands, the dramatic Great Escarpment, and the expansive Plains.

🎯 Exam Tip: Be able to identify and list the primary physiographic regions of both India and Brazil.

Question 4. Three major River Basins of Brazil
(i) Ganga Basin - Brahmaputra Basin - Narmada Basin.
(ii) Paraguay Parana Basin - Amazon Basin - Sao Francisco
(iii) Godavari Basin - Krishna Basin - Kaveri Basin.
Answer: Paraguay Parana Basin - Amazon Basin - Sao Francisco
In simple words: The three largest river basins in Brazil are the Amazon Basin, the Paraguay-Parana system, and the Sao Francisco River basin.

🎯 Exam Tip: Familiarize yourself with the major river systems of both countries covered in your syllabus.

Question 5. The order of subdivisions of North Indian Plains from west to east.
(i) Marusthali - Ganga Plains - Sunderbans
(ii) Pamir; Knot - Punjab Plains - Marusthali
(iii) Sunderbans - Vindhyas - Western Ghats
Answer: Marusthali - Ganga Plains - Sunderbans
In simple words: Moving from west to east across the North Indian Plains, you would typically encounter the Thar Desert (Marusthali), the fertile Ganga Plains, and finally the Sunderbans delta.

🎯 Exam Tip: Knowing the regional subdivisions of major physiographic units and their directional sequence is important for mapping and descriptive answers.

Match the column:

Question 1.

Column 'A'	Column 'B'
(1) Western Himalayas	(a) Siwaliks
(2) Central Himalayas	(b) Assam Himalayas
(3) Eastern Himalayas	(c) Kashmir Himalayas
	(d) Kumaun Himalayas

Answer:
1-c
2-d
3-b
In simple words: This match identifies the regional names for different sections of the Himalayas: Western is Kashmir, Central is Kumaun, and Eastern is Assam.

🎯 Exam Tip: Memorize the regional classifications of the Himalayas as they often appear in matching or direct answer questions.

Question 2.

Column 'A'	Column 'B'
(1) Himalayas	(a) the western and eastern part of the Peninsula.
(2) North Indian Plains	(b) consists of many plateaus and hill ranges
(3) The Peninsula	(c) one of the young fold mountains in the world.
(4) The Coastal Plains	(d) lies between Himalayan mountains in the north and the Peninsula in the south.
(5) The Island group	(e) are located more than 300 km away from the mainland in the Atlantic ocean.
	(f) small and large islands along the coast of the mainland.

Answer:
1-c
2-d
3-b
4-a
5 -f
In simple words: This matching exercise correctly pairs India's major physiographic divisions with their defining characteristics.

🎯 Exam Tip: Practice matching key geographical features with their descriptions to solidify your understanding of India's physiography.

Question 3.

Column 'A'	Column 'B'
(1) The southernmost point of India	(a) Gangotri
(2) The highlands in eastern Brazil	(b) Andes mountains
(3) The origin of Ganga	(c) Guyana Highlands
(4) The origin of Amazon	(d) Indira Point
(5) The southern most point of mainland India	(e) Kanyakumari
	(f) The Great Escarpment

Answer:
1-d
2 -f
3-a
4-b
5-e
In simple words: This table correctly matches significant geographical points and origins in India and Brazil.

🎯 Exam Tip: Pay attention to unique geographical facts, such as extreme points and origins of major rivers, for both India and Brazil.

Question 4.

S.no	Column 'A'	Column 'B'
1.	Longest river of India	(a) Sao Francisco
2.	Second largest river of India	(b) Godavari
3.	Longest river of Brazil	(c) Ganga
		(d) Brahmaputra
		(e) Amazon

Answer:
1-c
2-b
3-e
In simple words: This match identifies the longest and second longest rivers of India, and the longest river of Brazil.

🎯 Exam Tip: Knowing the relative sizes and importance of major rivers in both India and Brazil is a common test item.

Answer the following in one sentence:

Question 1. Which mountain is considered as one of the young fold mountains in the world?
Answer: The Himalayas are considered as one of the young fold mountains in the world.
In simple words: The Himalayas are a prime example of young fold mountains, formed by the collision of tectonic plates.

🎯 Exam Tip: Distinguishing between old and young fold mountains is a basic geological concept often tested.

Question 2. What is the southernmost range of Himalayas called?
Answer: The southernmost range of Himalayas is called the Siwaliks.
In simple words: The Siwaliks form the lowermost and outermost belt of the Himalayan mountain system.

🎯 Exam Tip: Remember the nomenclature for the different parallel ranges of the Himalayas.

Question 3. Where are the North Indian Plains located?
Answer: The North Indian Plains lies between Himalayan Mountains in the north and the Peninsula in the south.
In simple words: The vast North Indian Plains stretch between the towering Himalayas to the north and the Peninsular Plateau to the south.

🎯 Exam Tip: Understanding the relative location of major physiographic divisions is crucial for a complete picture of India's geography.

Question 4. Where are the Ganga Plains located?
Answer: The Ganga Plains lie to the east of the Aravalli in the North Indian Plain.
In simple words: The Ganga Plains, a fertile alluvial region, are situated to the east of the Aravalli Range within the North Indian Plains.

🎯 Exam Tip: Be specific when describing the location of sub-regions within larger physiographic units.

Question 5. What constitutes the delta of Ganga-Brahmaputra system?
Answer: Most of the West Bengal state of India and Bangladesh together constitute the delta of Ganga Brahmaputra system.
In simple words: The combined delta of the Ganga and Brahmaputra rivers, known for its extensive size, is primarily formed by parts of West Bengal in India and the country of Bangladesh.

🎯 Exam Tip: Understand transboundary river systems and their significant geographical features, such as deltas.

Question 6. What are Sunderbans?
Answer: The delta region of Ganga-Brahmaputra system are called the Sunderbans and it extends from Indian state of West Bengal to Bangladesh.
In simple words: The Sunderbans is the world's largest mangrove forest, formed by the delta of the Ganga and Brahmaputra rivers, spanning parts of India and Bangladesh.

🎯 Exam Tip: Sunderbans is an important ecological and geographical feature; know its location and significance.

Question 7. What is the length of the coastline of India?
Answer: The length of the coastline of India is approximately 7500 km.
In simple words: India has a long coastline, stretching for about 7,500 kilometers including its island territories.

🎯 Exam Tip: Remember approximate figures for significant geographical dimensions like coastline length.

Question 8. Why do the rivers originating from Western Ghats form estuaries?
Answer: Rivers originating from Western Ghats are short and swift, hence they form estuaries.
In simple words: Western Ghats rivers are typically short and flow rapidly over steep slopes, preventing significant sediment deposition and leading to the formation of estuaries rather than deltas.

🎯 Exam Tip: Understand the geomorphological reasons behind the formation of estuaries versus deltas (slope, river length, sediment load).

Question 9. What are the islands located in the Arabian Sea called?
Answer: The Islands located in the Arabian sea are called Lakshadweep Islands.
In simple words: Lakshadweep Islands are a group of coral islands located in the Arabian Sea.

🎯 Exam Tip: Clearly differentiate between the two major island groups of India based on their location.

Question 10. What are the islands located in the Bay of Bengal called?
Answer: The islands located in the Bay of Bengal are called Andaman and Nicobar Islands.
In simple words: The Andaman and Nicobar Islands are a chain of islands situated in the Bay of Bengal.

🎯 Exam Tip: Geographical names and their corresponding locations are important facts to recall.

Question 11. Name the only active volcano in India.
Answer: Barren Island is the only active volcano in India located in Andaman and Nicobar Islands.
In simple words: Barren Island, found in the Andaman Sea, is India's sole active volcano.

🎯 Exam Tip: Specific, unique geographical facts like this are often tested.

Question 12. Which is the highest peak in Brazil?
Answer: The highest peak in Brazil is Pico de Neblina.
In simple words: Pico de Neblina stands as the tallest mountain in Brazil.

🎯 Exam Tip: Ensure you know key geographical extremes for both countries in your syllabus.

Question 13. What acts as a barrier to the South East trade winds giving rise to rainshadow area in the northeastern part of the highlands in Brazil?
Answer: The Escarpment acts a barrier to the South East Trade winds giving rise to rainshadow area in the northeastern part of the highlands in Brazil.
In simple words: The Great Escarpment in Brazil blocks the southeast trade winds, creating a rain shadow region in the northeastern highlands.

🎯 Exam Tip: Understand how physiographic features influence climatic phenomena like rain shadows.

Question 14. Name the coastal island located between the mouths of river Amazon and river Tocantins.
Answer: Marajo is a large coastal island located between the mouths of River Amazon and River Tocantins.
In simple words: Marajo Island is a significant island situated at the large mouth of the Amazon River, where it meets the Tocantins.

🎯 Exam Tip: Identify unique geographical formations at major river deltas or mouths.

Question 15. What are most of the Amazon Plains covered with?
Answer: Most of the Amazon Plains are covered with tropical rainforests.
In simple words: The Amazon Plains are predominantly covered by dense tropical rainforests due to the region's climate.

🎯 Exam Tip: Connect major physiographic regions with their characteristic natural vegetation.

Question 16. Where is Pantanal located?
Answer: Pantanal is located in the northwestern part of Mato Grosso Do Sul in Brazil and it extends into Argentina.
In simple words: The Pantanal, a vast wetland, is found in the southwestern part of Brazil, particularly in Mato Grosso do Sul, and extends into Argentina.

🎯 Exam Tip: Know the specific location and transboundary nature of important geographical features.

Question 17. What is a 'Drought Quadrilateral'?
Answer: The rain shadow region of Trade Winds lying in the northern part of Brazil is called 'Drought Quadrilateral'.
In simple words: The 'Drought Quadrilateral' refers to the arid rain shadow area in northeastern Brazil, caused by the Great Escarpment blocking trade winds.

🎯 Exam Tip: Understand the concept of rain shadows and the specific terminology used for them in different regions.

Question 18. What is the Brazilian coast characterized by?
Answer: The Brazilian coast is characterised by a large number of beaches and sand dune complexes.
In simple words: Brazil's coastline is known for its extensive beaches and numerous sand dune formations.

🎯 Exam Tip: Remember the distinguishing characteristics of different coastal regions.

Question 19. What protects the Brazilian coast?
Answer: The Brazilian coast is protected in some areas by coral reefs and atoll islands.
In simple words: In certain areas, the Brazilian coast is naturally protected by coral reefs and atoll islands.

🎯 Exam Tip: Note natural protective features of coastlines, such as coral reefs.

Question 20. What is Pantanal?
Answer: Pantanal, which is a region of swamps and marshes is one of the largest wetlands in the world. Located in the northwestern part of Mato Grosso Do Sul in Brazil.
In simple words: Pantanal is a vast region of swamps and marshes in Brazil and Argentina, recognized as one of the largest wetlands globally.

🎯 Exam Tip: Be able to define and locate significant geographical features like the Pantanal wetlands.

Question 21. From where does Amazon collect its head waters?
Answer: Amazon collects its headwaters from the eastern slopes of the Andes Mountains in Peru.
In simple words: The headwaters of the Amazon River originate in the eastern slopes of the Andes Mountains in Peru.

🎯 Exam Tip: The origin of major rivers is a fundamental geographical fact.

Question 22. Where does the river Sao Francisco flow?
Answer: The river flows towards the north for a distance of about 1000 km. over the Brazilian plateau and takes a sharp eastward turn to enter the coastal : strip along the Atlantic Ocean.
In simple words: The Sao Francisco River flows northward across the Brazilian plateau for a significant distance before turning eastward to meet the Atlantic Ocean.

🎯 Exam Tip: Understand the general direction and termination points of important rivers.

Question 23. Which rivers meet the North Atlantic Ocean?
Answer: River Paraniba and River Itapecuru meet the North Atlantic Ocean.
In simple words: The Paraniba and Itapecuru rivers are among those that discharge their waters into the North Atlantic Ocean.

🎯 Exam Tip: Be aware of the major rivers that drain into the Atlantic Ocean in the context of Brazil's geography.

Question 24. Which two river systems are covered under the Himalayan Drainage System?
Answer: The Himalayan Drainage System cover two major river systems such as the Indus river system and the Ganga river system.
In simple words: The Himalayan Drainage System primarily encompasses the Indus and Ganga river systems, which are fed by Himalayan glaciers.

🎯 Exam Tip: Know the main river systems associated with each major physiographic division.

Question 25. What are 'Kayals'?
Answer: The coastal rivers in Kerala have long extending backwaters near their mouths, which are locally known as 'Kayals.'
In simple words: 'Kayals' are the backwaters, or lagoons, formed near the mouths of coastal rivers in Kerala.

🎯 Exam Tip: Familiarize yourself with local geographical terms, especially for specific regions like Kerala.

Question 26. Name the three major river basins of Brazil.
Answer: The three major river basins of Brazil are Amazon Basin, Paraguay-Parana system in the southwest and Sao Francisco in the eastern part of the highland.
In simple words: Brazil's three main river basins are the Amazon, the Paraguay-Parana in the southwest, and the Sao Francisco in the east.

🎯 Exam Tip: Be prepared to list the prominent river basins for Brazil.

Question 27. What is the approximate discharge of Amazon river?
Answer: The approximate discharge of Amazon river is about 2 lakh m3/s.
In simple words: The Amazon River has an enormous discharge, roughly 2 lakh cubic meters per second, making it the largest river by volume globally.

🎯 Exam Tip: Quantitative facts for significant geographical features, like river discharge, are often noteworthy.

Question 28. Where are the rivers Paraguay-Parana located?
Answer: The rivers Paraguay and Parana are located in the south-western part of Brazil.
In simple words: The Paraguay and Parana rivers are primarily located in the southwestern region of Brazil.

🎯 Exam Tip: Know the general location of major rivers within countries.

Question 29. Which is the third important river of Brazil?
Answer: Sao Francisco is the third important river of Brazil.
In simple words: The Sao Francisco River is considered Brazil's third most important river after the Amazon and Paraguay-Parana system.

🎯 Exam Tip: Be able to rank or identify important rivers beyond the most obvious ones.

Question 30. How are Indian rivers classified?
Answer: The rivers in India are classified into Himalayan and Peninsular rivers.
In simple words: Indian rivers are broadly categorized into two main types: those originating from the Himalayas and those from the Peninsular plateau.

🎯 Exam Tip: Understand the primary classification of India's river systems and the characteristics of each category.

Question 31. Name the major tributary of river Ganga.
Answer: Yamuna, originating at Yamunotri is a major tributary of Ganga.
In simple words: The Yamuna River, starting from Yamunotri, is a principal tributary of the Ganga.

🎯 Exam Tip: Know the major tributaries of India's most important rivers.

Question 32. From where do Himalayas extend?
Answer: The Himalayas extend from Pamir Knot in Tajikistan to the east.
In simple words: The Himalayan mountain range stretches from the Pamir Knot in Tajikistan eastward across the Asian continent.

🎯 Exam Tip: Understand the geographical extent and origin point of major mountain ranges.

Question 33. Which physical division lies between the Himalayas and the Peninsula?
Answer: The North Indian Plains lie between the Himalayas in the north and the Peninsula in the south.
In simple words: The extensive North Indian Plains act as a transitional zone between the Himalayan mountains to the north and the Peninsular Plateau to the south.

🎯 Exam Tip: Recall the relative positioning of India's main physiographic divisions.

Question 34. Which physical division forms the core of the South American continent?
Answer: The Brazilian and Guyana Highlands forms the core of the South American continent.
In simple words: The Brazilian and Guyana Highlands collectively form the ancient geological core of South America.

🎯 Exam Tip: Understand the broad geological structure and core regions of continents.

Question 35. The Guyana highlands cover, which states of Brazil?
Answer: The Guyana highlands cover the states of Roraima, Para and Amapa in Brazil.
In simple words: The Guyana Highlands extend into Brazil, primarily covering the northern states of Roraima, Para, and Amapa.

🎯 Exam Tip: Specific regional details, such as states covered by a highland, are useful for comprehensive understanding.

Question 36. Because of which physical division is the eastern side of Brazilian highlands are demarcated?
Answer: The eastern side of Brazilian highlands are demarcated because of the Great Escarpment.
In simple words: The Great Escarpment clearly defines the eastern boundary of the Brazilian Highlands.

🎯 Exam Tip: Identify the key physiographic features that mark boundaries or transitions between larger regions.

Question 37. Which is the largest plain land of Brazil?
Answer: The Amazon plains lying in the northern part is the largest plain land of Brazil.
In simple words: The Amazon plains, located in northern Brazil, represent the largest expanse of flat land in the country.

🎯 Exam Tip: Know the largest physiographic unit of each type (e.g., plains, highlands) for different countries.

Question 38. On which coast of India are deltas found?
Answer: Deltas are found on the eastern coast of India.
In simple words: Due to gentle slopes and longer rivers, deltas are predominantly formed along India's eastern coast.

🎯 Exam Tip: Remember the specific coastal features and their prevalence on India's eastern versus western coasts.

Name The Following:

Question 1. Five major physiographic divisions of India.
Answer: The Himalayas, The North Indian Plains, The Peninsula, Coastal Plains and Island groups.
In simple words: India's landscape is broadly divided into the Himalayas, North Indian Plains, Peninsular Plateau, Coastal Plains, and Island Groups.

🎯 Exam Tip: Listing the main physiographic divisions is a fundamental requirement for describing India's geography.

Question 2. West-East division of Himalayas.
Answer: Western Himalayas (Kashmir Himalayas),
Central Himalayas (Kumaun Himalayas) and Eastern Himalayas (Assam Himalayas).
In simple words: The Himalayas are regionally divided from west to east into the Kashmir, Kumaun, and Assam Himalayas.

🎯 Exam Tip: Understand both the longitudinal (parallel ranges) and latitudinal (regional) divisions of the Himalayas.

Question 3. Region constituting delta of Ganga-Brahmaputra system or world's largest delta. .
Answer: Sunderbans.
In simple words: The Sunderbans region is the delta formed by the Ganga-Brahmaputra river system, recognized as the world's largest delta.

🎯 Exam Tip: Identify the Sunderbans as the world's largest delta and associate it with the Ganga-Brahmaputra system.

 

Question 4. Coast bordering Arabian sea.

Answer: Western Coast.
In simple words: The Western Coast of India is the region adjacent to the Arabian Sea.

🎯 Exam Tip: Knowing the location of major coastal features helps in understanding India's physiography.

 

Question 5. Coast bordering Bay of Bengal.

Answer: Eastern Coast.
In simple words: The Eastern Coast of India borders the Bay of Bengal.

🎯 Exam Tip: Differentiating between the two coasts based on their bordering seas is fundamental.

 

Question 6. Islands in the Arabian Sea.

Answer: Lakshadweep Islands.
In simple words: Lakshadweep is the group of islands situated in the Arabian Sea.

🎯 Exam Tip: Remember the location of major island groups for geographical questions.

 

Question 7. Islands in the Bay of Bengal.

Answer: Andaman and Nicobar Islands.
In simple words: The Andaman and Nicobar Islands are located in the Bay of Bengal.

🎯 Exam Tip: Distinguish between the island groups located in the Arabian Sea and the Bay of Bengal.

 

Question 8. Other name of Thar Desert.

Answer: Marusthali.
In simple words: The Thar Desert is also commonly known as Marusthali.

🎯 Exam Tip: Knowing alternative names for geographical features is important for quick recall.

 

Question 9. Ranges in the central part of India.

Answer: Vindhyas and Satpuda.
In simple words: The Vindhya and Satpura ranges are prominent mountain ranges located in central India.

🎯 Exam Tip: Identifying key mountain ranges in different parts of India is essential.

 

Question 10. Physiographic divisions of Brazil.

Answer: The Highlands, The Great Escarpment, The Coasts, The Plains, The Island group.
In simple words: Brazil's landforms include highlands, a significant escarpment, coastal areas, vast plains, and various islands.

🎯 Exam Tip: Listing the main physiographic divisions shows a comprehensive understanding of Brazil's geography.

 

Question 11. Length of coastline of Brazil.

Answer: Approximately 7400 km
In simple words: Brazil has a long coastline, stretching for about 7400 kilometers.

🎯 Exam Tip: Numerical facts like coastline length can be easy scoring points if remembered accurately.

 

Question 12. Major river basins of Brazil.

Answer: Amazon Basin, Paraguya-Parana system, Sao Francisco.
In simple words: The three main river systems in Brazil are the Amazon, Paraguay-Parana, and Sao Francisco basins.

🎯 Exam Tip: Knowing the major river basins of a country is crucial for understanding its drainage pattern.

 

Question 13. Two main Himalayan river basins of India.

Answer: Ganga river basin and Indus river basin.
In simple words: The two primary river systems originating from the Himalayas in India are the Ganga and Indus basins.

🎯 Exam Tip: Focus on the main river systems as they are foundational to Indian geography.

 

Question 14. Origin of Ganga in Himalayas

Answer: Gangotri Glacier
In simple words: The sacred Ganga river originates from the Gangotri Glacier in the Himalayas.

🎯 Exam Tip: Key origins of major rivers are frequently asked in exams.

 

Question 15. Major tributary of Ganga

Answer: Yamuna river.
In simple words: The Yamuna is a significant tributary that joins the Ganga river.

🎯 Exam Tip: Identifying major tributaries helps in understanding the river network.

 

Question 16. Tributaries of River Indus.

Answer: Rivers Jhelum, Chenab, Ravi, Beas, and Satluj.
In simple words: The Indus river system includes several important tributaries such as Jhelum, Chenab, Ravi, Beas, and Satluj.

🎯 Exam Tip: A good understanding of tributary names for major river systems is important.

 

Question 17. Origin of River Satluj.

Answer: Mansarovar.
In simple words: The Satluj river originates near Lake Mansarovar.

🎯 Exam Tip: Linking rivers to their specific origins demonstrates detailed knowledge.

 

Question 18. Rivers flowing into the Gulf of Khambhat.

Answer: Rivers Tapi, Narmada, Mahi, and Sabarmati.
In simple words: The Tapi, Narmada, Mahi, and Sabarmati rivers all drain into the Gulf of Khambhat.

🎯 Exam Tip: Knowing which rivers drain into specific gulfs or seas is often tested.

 

Question 19. River basin located to the south of River Godavari.

Answer: Basin of River Krishna.
In simple words: The Krishna River basin is situated geographically to the south of the Godavari River basin.

🎯 Exam Tip: Understanding the relative geographical positions of river basins is key.

 

Question 20. Plains formed due to depositional work of river Satluj.

Answer: Punjab Plains.
In simple words: The fertile Punjab Plains were formed by the sediments deposited by the Satluj river and its tributaries.

🎯 Exam Tip: Connect the formation of plains with the rivers responsible for their depositional work.

 

Question 21. Tributaries of Peninsula joining the Ganga basin.

Answer: Rivers Chambal, Ken, Betawa, Shon, and Damodar.
In simple words: Several rivers from the Peninsular Plateau, including Chambal, Ken, Betawa, Shon, and Damodar, join the Ganga river system.

🎯 Exam Tip: Be aware of the tributaries that join the main river systems from different regions.

 

Question 22. States having short and swift river systems.

Answer: Kerala, Karnataka, Goa and Maharashtra.
In simple words: The states of Kerala, Karnataka, Goa, and Maharashtra are characterized by short and fast-flowing rivers, especially on the west coast.

🎯 Exam Tip: Understanding the link between topography (steep slopes) and river characteristics (short, swift) is important.

 

Question 23. River originating from the eastern slopes of Western Ghats.

Answer: Rivers Godavari, Krishna and Kaveri.
In simple words: The Godavari, Krishna, and Kaveri rivers all originate from the eastern side of the Western Ghats.

🎯 Exam Tip: Remember the major east-flowing peninsular rivers and their origins.

 

Question 24. Largest wetlands in the world.

Answer: Pantanal.
In simple words: The Pantanal region is globally recognized as one of the largest wetlands.

🎯 Exam Tip: Key global geographical features are important for general knowledge and specific subject exams.

 

Question 25. Highest peak of Brazil

Answer: Pico de Neblina.
In simple words: Pico de Neblina is the highest mountain peak located in Brazil.

🎯 Exam Tip: Knowing the highest points of major countries or regions is often tested.

 

Question 26. Western border of Indian Peninsula.

Answer: Western Ghats.
In simple words: The Western Ghats mountain range forms the natural western boundary of the Indian Peninsula.

🎯 Exam Tip: Understand how physical features define the borders of geographical regions.

 

Question 27. Eastern border of Indian Peninsula.

Answer: Eastern Ghats.
In simple words: The Eastern Ghats mountain range forms the eastern boundary of the Indian Peninsula.

🎯 Exam Tip: Differentiate between the Western and Eastern Ghats based on their location and characteristics.

 

Question 28. Oldest fold mountains of India.

Answer: Aravallis.
In simple words: The Aravalli Range is considered to be one of the oldest fold mountain systems in India.

🎯 Exam Tip: Recognise the geological age and type of mountain ranges in India.

 

Question 29. Major mountain system of Asia.

Answer: Himalayas.
In simple words: The Himalayas represent a major mountain range system across the Asian continent.

🎯 Exam Tip: Understand the global significance of major mountain ranges like the Himalayas.

Identify the type on the basis of the statement

 

Question 1. A landform formed due to deposition of sediment carried by a river as the flow leaves its mouth and enters slower-moving or standing water.

Answer: Delta.
In simple words: A delta is a triangular landform created when a river deposits sediment as it enters a larger body of water.

🎯 Exam Tip: Clearly define key geographical terms with their formation processes.

 

Question 2. The area where land meets the sea or ocean, or a line that forms the boundary between the land and the ocean or a lake.

Answer: Coast.
In simple words: A coast is the transitional area where land and a body of water, such as a sea or lake, meet.

🎯 Exam Tip: Precise definitions of geographical features are important for accurate answers.

 

Question 3. Portion of land drained by a river and its tributaries.

Answer: River Basin.
In simple words: A river basin refers to all the land area from which water flows into a specific river and its branches.

🎯 Exam Tip: Understanding terms like 'river basin' is fundamental to drainage system concepts.

 

Question 4. majority of its border, (Usually three sides) while being connected to a mainland from which it extends.

Answer: The Peninsula.
In simple words: A peninsula is a piece of land surrounded by water on three sides, extending from a larger mainland.

🎯 Exam Tip: Clearly defining landforms like a peninsula is key to geographical comprehension.

 

Question 5. A steep slope or long cliff that forms as an effect of faulting or erosion and separates two relatively leveled areas having differing elevations.

Answer: Escarpment.
In simple words: An escarpment is a sharp, steep slope or cliff that divides areas of different elevations, often formed by faulting or erosion.

🎯 Exam Tip: Define geographical features with their causal processes (faulting, erosion) for better understanding.

 

Question 6. Any piece of land that is surrounded by water all the sides.

Answer: Island.
In simple words: An island is a body of land completely surrounded by water.

🎯 Exam Tip: Basic geographical definitions should be memorized accurately.

Mark the following on the map with the given information:

 

Question 1. On the outline map of India.
(a) Aravali hills
(b) Himalayas/Greater Himalayas
(c) Vindhya Range and Satpuda Range
(d) Gulf of Mannar
(e) Western Ghats
(f) Eastern Ghats
(g) Gulf of Kutch
(h) Gulf of Khambhat
(i) K2
(j) Sunderbans
(k) Thar Desert/Marusthali

Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह मानचित्र भारत की भौतिक विशेषताओं को दर्शाता है। इसमें अरावली पहाड़ियाँ (1), हिमालय/ग्रेटर हिमालय (2), विंध्य रेंज (3), मन्नार की खाड़ी (4), पश्चिमी घाट (5), पूर्वी घाट (6), कच्छ की खाड़ी (7), खंभात की खाड़ी (8), K2 पर्वत (9), सुंदरबन (10), और थार रेगिस्तान/मरुस्थली (11) जैसे महत्वपूर्ण स्थलाकृतिक तत्वों को दर्शाया गया है। यह छात्रों को भारत के प्रमुख भौगोलिक क्षेत्रों की पहचान करने और उनके स्थान को समझने में मदद करता है।

🎯 Exam Tip: Practicing marking these features on a blank outline map is essential for mastering map-based questions.

 

Question 2. On the outline map of India mark the following.
(a) Northern Mountainous Region
(b) North Indian Plains
(c) The Peninsular Plateau
(d) Western Coastal Plain
(e) Eastern Coastal Plain
(f) Lakshadweep Island
(g) Andman-Nicobar Islands
(h) Western and Eastern Ghats

Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह मानचित्र भारत के प्रमुख भौगोलिक विभाजनों को दर्शाता है। इसमें उत्तरी पर्वतीय क्षेत्र (1), उत्तरी भारतीय मैदान (2), प्रायद्वीपीय पठार (3), पश्चिमी तटीय मैदान (4), पूर्वी तटीय मैदान (5), लक्षद्वीप द्वीप समूह (6), अंडमान-निकोबार द्वीप समूह (7), और पश्चिमी व पूर्वी घाट (8) को स्पष्ट रूप से चित्रित किया गया है। यह छात्रों को भारत की विविध भू-आकृतियों और उनके संबंधित स्थानों को समझने में सहायता करता है।

🎯 Exam Tip: Identifying and labeling these broad physiographic divisions on a map is a common and high-scoring question type.

 

Question 3. Show the following on the outline map of India.
(a) R. Ganga
(b) R. Indus
(c) R. Brahmaputra
(d) R. Narmada
(e) R. Tapi
(f) R. Godavari
(g) R. Mahanadi
(h) R. Krishna
(i) R. Kaveri
(j) R. Luni
(k) R. Sabarmati
(l) R. Mahi
(m) R. Yamuna
(n) R. Damodar

Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह मानचित्र भारत की प्रमुख नदी प्रणालियों को प्रदर्शित करता है। इसमें गंगा (1), सिंधु (2), ब्रह्मपुत्र (3), नर्मदा (4), तापी (5), गोदावरी (6), महानदी (7), कृष्णा (8), कावेरी (9), लूनी (10), साबरमती (11), माही (12), यमुना (13), और दामोदर (14) नदियों के मार्ग और उनके संबंधित बेसिन दिखाए गए हैं। यह छात्रों को भारत के जल निकासी पैटर्न और प्रमुख नदियों के स्थानों को स्पष्ट रूप से समझने में मदद करता है।

🎯 Exam Tip: Tracing the courses of these rivers and their relative positions is crucial for map work.

 

Question 4. On the outline map of Brazil, mark the following:
(a) Guyana Highlands
(b) Brazilian Highlands
(c) Great Escarpment
(d) Marajo Island
(e) Marajo Bay
(f) Sao Marcos Bay
(g) Atlantic Ocean
(h) Pantanal Wetlands
(i) Pico De Neblina Peak
(j) Cassino Beach

Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह मानचित्र ब्राजील की भौतिक भूगोल को दर्शाता है। इसमें गुयाना हाइलैंड्स (1), ब्राज़ीलियाई हाइलैंड्स (2), ग्रेट एस्कार्पमेंट (3), माराजो द्वीप (4), माराजो खाड़ी (5), साओ मार्कोस खाड़ी (6), अटलांटिक महासागर (उत्तर और दक्षिण) (7), पेंटानल वेटलैंड्स (8), पिको डी नेब्लिना पीक (9), और कैसीनो बीच (10) जैसे प्रमुख भौगोलिक स्थलचिह्न दिखाए गए हैं। यह छात्रों को ब्राजील की भू-आकृतियों और उनके स्थानों की कल्पना करने में सहायता करता है।

🎯 Exam Tip: Accurately locating Brazil's key physical features on an outline map is a good test of geographical knowledge.

 

Question 5. On an outline map of Brazil, show all major rivers of Brazil.
(a) River Amazon
(b) River Sao Francisco
(c) River Parana
(d) River Paraguay
(e) River Itapecuru
(f) River Paraniba
(g) River Puraguaco
(h) River Uruguay

Answer:
ℹ️ चित्र व्याख्या (Diagram Explanation): यह मानचित्र ब्राजील की प्रमुख नदी प्रणालियों को प्रदर्शित करता है। इसमें अमेज़ॅन नदी (1), साओ फ्रांसिस्को नदी (2), पराना नदी (3), पराग्वे नदी (4), इटपेकुरु नदी (5), परानैबा नदी (6), पुरागुआको नदी (7), और उरुग्वे नदी (8) जैसे सभी महत्वपूर्ण नदियों के मार्ग दिखाए गए हैं। यह छात्रों को ब्राजील के जल निकासी नेटवर्क और प्रमुख नदियों के भौगोलिक वितरण को समझने में मदद करता है।

🎯 Exam Tip: Mastering the courses of Brazil's major rivers is crucial for understanding its drainage and regional geography.

Answer the following questions:

 

Question 1. There are no deltas on the western coast of India.
Answer:
(i) Deltas are formed in the coastal areas where there is gentle slope, because the rivers slow down forming distributaries and channels.
(ii) The western coast bordering the Western Ghats are by and large rocky coasts having a narrow width.
(iii) Many short and swift seasonal rivers originate from the steep western slopes of the Western Ghats.
(iv) As the rivers flow through steep slopes, their velocity increases. So there is very little deposition
made by them.
(v) Hence, there are no deltas on the western coast of India.
In simple words: The western coast of India has no deltas because its rivers are short, swift, and flow over steep slopes, preventing significant sediment deposition needed for delta formation.

🎯 Exam Tip: Understanding the geological and topographical reasons behind the absence of deltas on the west coast is a common explanation-based question.

 

Question 2. Many deltas are found along the Eastern coast of India.
Answer:
(i) The eastern coast borders the Bay of Bengal. It has been formed as a result of depositional work of rivers.
(ii) Many east flowing rivers rising from the Western and Eastern Ghats after travelling a long distance join the Bay of Bengal at this coast.
(iii) Because of the gentle slope of the land, rivers flow at lower velocities and deposit the sediments brought with them at the coast. Therefore, this coast is comparatively wider than the west.
(iv) As a result, deltas are found along the eastern coast of India.
In simple words: The east coast of India has many deltas because east-flowing rivers travel long distances, slow down on the gentle slope, and deposit a lot of sediment into the Bay of Bengal.

🎯 Exam Tip: Explaining the causes of delta formation on the east coast, including river characteristics and topography, is crucial for full marks.

 

Question 3. The region to the north of the Escarpment is called Drought Quadrilateral.
Answer:
(i) The eastern side of the Highlands is demarcated because of the Escarpment having an altitude of 790 m.
(ii) The Escarpment acts as a barrier to the Southeast trade winds and cause orographic type of rainfall in the coastal region.
(iii) Beyond the highlands the effect of these winds gets reduced leading to minimal rainfall.
(iv) A rain shadow region is formed to the north east of the Escarpment. Thus, the region to the north of this area is called "Drought Quadrilateral”.
In simple words: The Great Escarpment in Brazil blocks moisture-laden trade winds, causing a rain shadow area in its northeastern highlands which is called the Drought Quadrilateral.

🎯 Exam Tip: Clearly defining "rain shadow" and the role of the Escarpment in Brazil's climate pattern is key to a good answer.

 

Question 4. The Amazon Plains are covered by inaccessible tropical rainforest.
Answer:
(i) The northern part of Brazil lying between the Equator and the Tropic of Capricorn, i.e. in the Tropical zone is covered largely by the Amazon Plains.
(ii) Amazon plains lying between the Guyana highlands and the Brazilian highlands form the largest plain land of Brazil.
(iii) The Amazon valley receives very heavy rainfall of around 2000 mm and the average temperature here is 25 to 28°C.
(iv) These conditions favor the dense growth of tropical rain forests. Due to frequent flooding and dense undergrowth, these forests are largely inaccessible.
In simple words: The Amazon Plains have dense tropical rainforests because they are located in the hot and wet equatorial region, experiencing high rainfall and temperatures year-round, leading to thick, often flooded, vegetation.

🎯 Exam Tip: Connect the geographical location (equatorial zone) and climatic factors (high rainfall, temperature) directly to the growth and inaccessibility of the Amazon rainforests.

 

Question 5. Pantanal is called the largest wetlands in the world.
Answer:
(i) Pantanal lies towards the south western part of the highland area in Brazil.
(ii) Roughly 80% of the Pantanal flood plains are submerged during the rainy season.
(iii) This region is filled with swamps and marshes from the northwestern part of Mato Grosso Do Sul in Brazil till Argentina.
(iv) Hence Pantanal is called the largest wetland in the world.
In simple words: Pantanal is the world's largest wetland because it's a vast low-lying area in southwestern Brazil and Argentina that floods extensively during the rainy season, creating widespread swamps and marshes.

🎯 Exam Tip: Mentioning its location in southwestern Brazil/Argentina and the seasonal submersion of its floodplains due to swamps and marshes are essential details.

 

Question 6. Agriculture is widely practised in the plains of Punjab region.
Answer:
(i) Plains of Punjab lie to the north of Rajasthan. This region is spreads to the west of Aravalis and Delhi ranges.
(ii) These plains have formed as a result of the depositional work by river Sutluj and its tributaries.
(iii) Since the soil here is very fertile, agriculture is largely practised in this region.
(iv) Thus, due to the availability of fertile soil and ample water suppy agriculture is practised here.
In simple words: Agriculture thrives in the Punjab plains because the fertile soil, deposited by the Sutlej river and its tributaries, combined with ample water supply, creates ideal conditions for farming.

🎯 Exam Tip: Emphasize the role of fertile alluvial soil from river deposition and the availability of water as primary reasons for extensive agriculture in Punjab.

 

Question 7. Write notes on :
Answer:
The Western Ghats:
(i) Western Ghats also known as Sahyadri (Benevolent Mountains) is a mountain range that runs parallel to the western coast of the Indian peninsula.
(ii) The range runs north to south along the western - edge of the Deccan Plateau, and separates the plateau from a narrow coastal plain, called West coastal plan, along the Arabian Sea.
(iii) The range starts near the border of Gujarat and Maharashtra, south of the Tapi river, and runs approximately 1,600 km through the states of Maharashtra, Goa, Karnataka, Kerala and Tamil Nadu ending near Kanyakumari, at the southern tip of India.
(iv) The altitude of the western Ghats increases towards the south.
Island group of India:
(i) India has many small and large islands along the coast of the mainland. These are included in the coastal island group.
(ii) Besides, India has two large group of islands, one each in the Arabian Sea and in the Bay of Bengal.
(iii) The islands in the Arabian Sea are known as Lakshadweep whereas the islands in the Bay of Bengal are called the Andaman and Nicobar Islands.
(iv) Most of the islands in Lakshadweep are atoll islands.
(v) They are small in extent and not very high.
(vi) Islands in the Andaman group are mainly volcanic islands.
(vii) They are large with hills in their interior parts, which includes an island called Barren Island which has the only active volcano in India. There are atolls in the Nicobar group too.
Brazilian Highlands:
(i) Southern Brazil is occupied by an extensive plateau. It is known as the Brazilian Highlands or the Brazilian Shield or the Brazilian Plateau.
(ii) Brazilian and Guyana Highlands together form the core of South American continent.
(iii) The main part of the Guyana Highlands is in Venezuela and it extends up to French Guiana. In Brazil, it covers the states of Roraima, Para and Amapa in the north.
(iv) The lower part of these highlands is found in Brazil. But the highest peak of Brazil, Pico de Neblina, 3014 m lies on the border between Brazil and Venezuela.
(v) The regions to the east and south of the Brazilian highlands have an altitude of more than 1000m. But in other parts, the altitude is between 500 to 1000m.
(vi) The highlands gradually slope towards north and the slopes are not very steep.
(vii) The tributaries of Amazon flowing through this region make rapids and waterfalls. Towards the north the slopes are steep but not abrupt. A number of rivers originate from the terminal portion of the highlands and flow northwards to meet Atlantic Ocean.
(viii) Some major rivers like Uruguay, Paraguay and Parana originate from the southern slopes of the highlands and enter Argentina. Its slope towards the east is steep and it appears in the form of an escarpment.
Coastal Plains of India:
(i) India is blessed with a long coastline extending for approximately 7500 km.
(ii) It lies to the western and eastern part of the Peninsula. Its western and eastern coastlines show remarkable dissimilarities.
(iii) The western coast borders the Arabian Sea. It is by and large a rocky coast.
(iv) At places, spurs starting from the Western Ghats have extended right up to the western coast. Its width is also less.
(v) Rivers originating from Western Ghats are short and swift and hence they form estuaries and not deltas.
(vi) The eastern coast borders the Bay of Bengal. It has been formed as a result of depositional work of rivers.
(vii) Many east flowing rivers rising from the Western and Eastern Ghats meet the eastern coast.
(viii) Because of the gentle slope of the land, rivers flow at lower velocities and deposit the sediments brought with them at the eastern coast. As a result, deltas are found along this coast.
The Plains of Brazil:
(i) The plains in Brazil are confined to two areas namely the Amazon basin in the north and Paraguay-Parana source region in the southwest.
(ii) Amazon plains lying between the two highlands form the largest plain land of Brazil.
(iii) Amazon plains lying in the northern parts of Brazil generally slope eastwards.
(iv) The Amazon basin is quite wide in the west (about 1300 km) and it narrows eastward. Its width is minimum where the Guyana Highlands and Brazilian Highland come closer. (240 km.)
(v) As the river approaches the Atlantic Ocean, the width of the plains increases.
(vi) These are mostly forested areas and largely inaccessible due to frequent flooding and dense undergrowth. Most of the Amazon plains are covered by tropical rainforests.
(vii) The other plains in Brazil are located to the southwestern part of the highlands. They form the source region of Paraguay and Parana rivers.
(viii) The source region of Paraguay slopes towards the south while the source region of Parana slopes towards the southwest.
(ix) Pantanal is one of the largest wetlands in the world. It lies towards the southwest part of the highland areas. It is a region of swamps and marshes in northwestern part of Mato Grosso Do Sul in Brazil and it extends into Argentina.
Coastal Rivers of Brazil:
(i) Brazil has a number of short coastal rivers.
(ii) The coastal area being densely populated these rivers attain significance.
(iii) River Pamaiba and River Itapecuru flowing northwards meet the North Atlantic Ocean.
(iv) The rivers that enter South Atlantic Ocean collect their headwaters along the escarpment.
(v) River Puraguaco enters the Atlantic Ocean near Salvador town.
Paraguay - Parana system:
(i) These two rivers are located in the southwestern part of Brazil.
(ii) Both the rivers form the catchment of River Plata in Argentina.
(iii) These two rivers and river Uruguay in extreme south of the highlands collect their headwaters from the southern portion of the highlands.
Indus River System:
(i) Indus and its tributaries (Jhelum, Beas, Chenab, Ravi and Satluj) drain the Western Himalayas i.e., they flow through the state of Jammu and Kashmir.
(ii) They flow almost parallel to each other.
(iii) A major tributary of river Indus, the Satluj, originates near Mansarovar and flows westwards.
(iv) Punjab Plains have formed from the depositional work of this river and its tributaries.
(v) Indus flows through Pakistan and then meets the Arabian Sea.
Ganga River System:
(i) The river Ganga originates from the Gangotri glacier and crosses the Himalayas to become an east-flowing river.
(ii) Many tributaries of the Ganga also flow in a similar manner.
(iii) River Yamuna, originating at Yamunotri, is a major tributary of Ganga.
(iv) Another major tributary of the Ganga flows through the northern part of the Greater Himalayas, crosses the Himalayas to enter India.
(v) When it flows through the Himalayas it is called Tsang Po.
(vi) When it crosses the Himalayas, it is called Dihang and its eastward flow thereafter is called as Brahmaputra.
(vii) From time to time, Ganga meets its tributaries, hence its discharge increases.
(viii) Ganga receives Brahmaputra as its tributary in its lower reaches in Bangladesh. The huge volume of water and huge deposition has led to the formation of a large delta.
(ix) Besides these Himalayan rivers, Ganga receives a number of tributaries from Peninsula like Shon, Damodar, etc.
Rivers Meeting the Arabian Sea:
(i) The west flowing rivers occupying the area between the Western Ghats and the Arabian Sea are short in length but swift.
In simple words: This section provides detailed notes on various physiographic features and river systems of India and Brazil, covering their characteristics, locations, and formation processes.

🎯 Exam Tip: When writing notes, ensure each point is distinct and provides specific geographical information. For comparative topics, clearly state the features of each region.