RBSE Solutions Class 9 Social Science Chapter 13 Rivers and Lakes of India

Textbook Questions Solved

Multiple Type Questions (MCQs)

Question 1. The source of Satluj river is
(a) Rakshastal
(b) Satlujtal
(c) Kamaltal
(d) Ramtal
Answer: (a) Rakshastal
In simple words: The Satluj River starts from a lake called Rakshastal. This lake is found in the high mountains.

🎯 Exam Tip: Remember key geographical origins for major rivers, as these are frequently tested factual questions.

Question 2. The effect of inclination of Peninsular Plateau is seen on
(a) structure
(b) water mass
(c) direction of water flow
(d) quantity of soil
Answer: (c) direction of water flow
In simple words: The slope of the Peninsular Plateau decides which way the rivers will flow. Rivers will always flow downhill.

🎯 Exam Tip: Understand that the land's slope (inclination) is a primary factor determining river drainage patterns, especially in plateaus.

Question 3. Which of the followig river is not a part of Inland Drainage?
(a) Mantha
(b) Medha
(c) Kakni
(d) Parvati
Answer: (d) Parvati
In simple words: The Parvati river is not one of the rivers that flow inland and disappear without reaching the sea. It flows into other river systems.

🎯 Exam Tip: Familiarize yourself with examples of both inland drainage rivers and rivers that flow into seas to avoid confusion.

Very Short Answer Type Questions

Question 1. Name of the place of origin of the river Ganga.
Answer: The river Ganga originates from the Gangotri glacier.
In simple words: The Ganga river starts from a large ice mass called the Gangotri glacier.

🎯 Exam Tip: For major rivers, knowing their source (glacier, lake, mountain range) is a key point to remember.

Question 2. Which is called Garden of South?
Answer: Thanjavur district is called the Garden of the south. This area is known for its rich agriculture.
In simple words: The Thanjavur district is known as the Garden of the South.

🎯 Exam Tip: Remember specific titles or nicknames given to places based on their unique characteristics or contributions.

Question 3. On which river the Kapildhara fall is located?
Answer: The Kapildhara waterfall is located on the Narmada river at Bheraghat near Jabalpur. This is a beautiful natural sight.
In simple words: The Kapildhara waterfall is on the Narmada river, close to Jabalpur.

🎯 Exam Tip: Connect important waterfalls with their respective rivers and locations for better recall.

Question 4. Which mountain divides the inland drainage system of Rajasthan into two parts?
Answer: The Aravalli mountain divides the inland drainage system of Rajasthan into two parts. These mountains act as a water divide.
In simple words: The Aravalli mountain range splits Rajasthan's inland river system into two sections.

🎯 Exam Tip: Identify major mountain ranges that serve as water divides for drainage systems in different regions.

Question 5. Name the two important salt water lakes.
Answer: Two important salt water lakes of Rajasthan are:
1. The Sambhar Lake
2. The Didwana Lake
These lakes are crucial for salt production.
In simple words: Sambhar and Didwana are two important salt water lakes.

🎯 Exam Tip: Be able to list and locate significant geographical features like salt lakes, especially when they have economic importance.

Short Answer Type Questions

Question 7. Which civilization was developed on the bank of Saraswati river?
Answer: The Indus-Saraswati civilization was developed on the bank of the Saraswati river. This ancient civilization was one of the earliest urban societies in the world.
In simple words: The Indus-Saraswati civilization grew up along the Saraswati river.

🎯 Exam Tip: Understand the historical importance of rivers in the development of early human civilizations.

Question 1. Name the tributaries of Brahmaputra river.
Answer: The tributaries of the Brahmaputra river include Dibang, Luhit, Dihang, Tista, Janjhi, Kulsi, Marias, and Kapeli. These smaller rivers join the main Brahmaputra river. Each tributary adds to the overall water volume and flow of the mighty river.
In simple words: Some rivers that join the Brahmaputra are Dibang, Luhit, Tista, and Kapeli.

🎯 Exam Tip: When asked for tributaries, list as many as you remember, focusing on the prominent ones first.

Question 2. Give comparison of the North Indian rivers and the South Indian rivers
Answer: Here is a comparison between the rivers of North India and South India:
1. North Indian rivers are perennial, meaning they flow throughout the year, unlike South Indian rivers which often dry up in summer.
2. North Indian rivers usually form fewer waterfalls, while South Indian rivers create more waterfalls due to their terrain.
3. North Indian rivers are well-suited for irrigation and navigation. South Indian rivers, however, are generally not suitable for either.
4. North Indian rivers create large, fertile plains, but South Indian rivers do not form extensive fertile plains.
5. Many large cities and commercial centers are found along the banks of North Indian rivers, which is less common for South Indian rivers. The Himalayan origin of North Indian rivers ensures a continuous water supply.
In simple words: North Indian rivers flow all year, help with farming, and create big plains. South Indian rivers can dry up, make more waterfalls, and are not as good for travel or huge farms.

🎯 Exam Tip: Focus on key contrasting features like perennial vs. seasonal flow, suitability for navigation, and plain formation when comparing river systems.

Question 3. Write about the Arabian Sea rivers system.
Answer: The main rivers that flow into the Arabian Sea are the Narmada and the Tapti. The Narmada is the longest among them. It starts from Amar Kantak in Madhya Pradesh and flows through a rift valley. This river shows a beautiful view of marble rocks near Bhedaghat in Jabalpur. The Tapti river also begins in the Betul district of Madhya Pradesh and flows in a valley parallel to the Narmada. Other rivers that drain into the Arabian Sea include Mahi, Sukari, Badi, and Sharavati. These rivers are generally shorter and flow faster due to the steep western slopes.
In simple words: The Narmada and Tapti are big rivers that flow into the Arabian Sea. They start in Madhya Pradesh and pass through valleys. Other smaller rivers like Mahi also join this system.

🎯 Exam Tip: When describing river systems, mention major rivers, their origins, key features (like rift valleys), and notable tributaries or associated landmarks.

Question 5. Mention about the rivers of the Arabian Sea drainage system.
Answer: The Arabian Sea drainage system includes rivers like the Luni, Mahi, Sabarmati, and West Banas. Among these, the Mahi and the Luni are the most important. The Luni river originates from Nagpahar in Ajmer and flows into the Rann of Kutchchh. The Mahi river starts from the Amoru district of Madhya Pradesh and drains into the Bay of Bengal, forming a boundary between Dungarpur and Banswara. The Mahi Bajaj Sagar Dam has been built on it near Banswara. Its tributaries are Son, Amba, and Jakham. These rivers are vital for the regions they flow through, providing water for various purposes.
In simple words: The Luni and Mahi rivers are important parts of the Arabian Sea drainage. The Luni goes into the Rann of Kutchchh, and the Mahi flows into the Bay of Bengal.

🎯 Exam Tip: Distinguish between rivers flowing into the Arabian Sea versus the Bay of Bengal, even if some have complex routes or origins.

Question 6. Write about salt water lakes of Rajasthan.
Answer: Rajasthan has several important salt water lakes, including Sambhar, Didwana, Lunkaransar, and Pachpadra. Sambhar Lake is the largest of these and is located near Phulera in Jaipur district. Rivers like Mantha, Med, Khari, Roopnagar, and Khandela flow into Sambhar Lake. Didwana Lake is in the southern part of Didwana city in Nagour district. Lunkaransar Lake is found in Bikaner district, and Pachpadra is in Barmer. Other places with salt water lakes include Phalodi, Kanwod, Kachor, and Khosa. These lakes are valuable sources of salt.
In simple words: Rajasthan has many salt water lakes like Sambhar, Didwana, and Lunkaransar. Sambhar is the biggest and is located near Jaipur.

🎯 Exam Tip: When describing lakes, mention their names, locations (district/city), and any special features (e.g., largest, economic use).

Long Answer Type Questions

Question 1. Describe the river system of North India.
Answer: The river system of North India is mainly divided into three major parts:
1. The Indus River System:
This system's rivers start from the western Himalayas, flowing generally upwards before draining into the Arabian Sea. It includes the Indus River and its tributaries: Satluj, Beas, Chenab, Ravi, and Jhelum. The upper parts of these rivers are in India, while the lower parts are in Pakistan. The Satluj River originates from Rakshastal near Mansarovar lake in the Kailash mountain's southern slope. The Bhakra Nangal dam is built on the Satluj near Ropar in Punjab. Srinagar, a famous tourist city, is located on the bank of the Jhelum river.
2. The Ganga River System:
This system includes the Ganga and its tributaries, such as Yamuna, Ghaghra, Gandak, and Kosi, originating from the North. It also includes rivers like Chambal, Betwa, Kalisindh, and Son, which originate from the Plateau region. The Ganga is India's most important river, starting from the Gangotri glacier. It forms at Devprayag where the Bhagirathi and Alaknanda rivers meet. The Ganga enters the plains near Haridwar and is joined by the Yamuna near Prayag, and other rivers like Gomti and Ghaghra. The Yamuna, which starts from Yamunotri, is its main tributary. The Ganga enters Bangladesh near Farakka, where it is called Padma. Before flowing into the Bay of Bengal, it forms a delta with the Brahmaputra. The Chambal is a tributary of the Yamuna and is Rajasthan's only perennial river, with tributaries like Banas, Parvati, and Kalisindh.
3. The Brahmaputra River System:
The Brahmaputra is India's longest river. It originates near Mansarovar lake in the Kailash mountain in Tibet. It flows eastwards parallel to the Himalayas. When it reaches the eastern end of the Himalayas, it is known as the Tsangpo. Then, it turns south and west, flowing through Assam before entering Bangladesh and joining the Ganga. Its tributaries include Dibang, Lahit, Dihang, Tista, Janjhi, Kulsi, Manas, and Kapil. This river is known for causing severe floods, and many islands are found within it. These rivers have played a crucial role in shaping the geography and culture of Northern India.
In simple words: North India has three big river systems: Indus, Ganga, and Brahmaputra. The Indus and its rivers flow to the Arabian Sea. The Ganga and its many joining rivers form a large system that flows to the Bay of Bengal. The Brahmaputra also flows to the Bay of Bengal and is known for floods.

🎯 Exam Tip: For descriptive questions on river systems, organize your answer by major systems, mentioning their origins, key tributaries, and significant features.

Question 2. Explain the river system of South India and compare in with the rivers of North India.
Answer: The river system of South India, also known as Peninsular rivers, has distinct characteristics. Most of these rivers flow from west to east. They originate in mountain regions, and unlike Himalayan rivers, they are mostly rain-fed, meaning they do not flow all year round and can dry up in summer. They are suitable for irrigation and form large fertile plains. Important Peninsular rivers include the Godavari (the largest), Krishna, Kaveri, and Mahanadi, which mostly drain into the Bay of Bengal, and the Narmada and Tapti, which drain into the Arabian Sea. The Kaveri delta, for example, forms a very fertile region called the Garden of South (Thanjavur). The Godavari is the largest Peninsular river, originating from Trayambak in the Western Ghats near Nasik and forming a triangular delta. The Narmada is a major river flowing into the Arabian Sea, originating from Amarkantak and flowing through a rift valley. The Tapti also originates in Madhya Pradesh and flows in a trough parallel to the Narmada. The Peninsular rivers are crucial for water supply, irrigation, and power generation in their respective basins.

Comparison with North Indian rivers:
1. North Indian rivers are perennial (flow all year) as they are fed by Himalayan glaciers, while South Indian rivers are seasonal and rain-fed.
2. The source of North Indian rivers is the Himalayas, whereas South Indian rivers originate in mountain regions within the peninsula.
3. North Indian rivers are very suitable for irrigation and navigation due to their continuous flow and flatter courses, unlike South Indian rivers which are less suitable.
4. North Indian rivers form extensive fertile plains and deltas, while South Indian rivers also form fertile plains but generally on a smaller scale.
5. North Indian rivers have fewer waterfalls compared to South Indian rivers, which often have more waterfalls due to the plateau's rugged terrain.
6. Many large cities and commercial centers have developed along North Indian rivers; this is less common along South Indian rivers.
7. The North Indian river system is divided into three parts: Indus, Ganga, and Brahmaputra river systems, which are extensive and complex.
In simple words: South Indian rivers depend on rain, so they may not flow all year. They are good for farming and create fertile land. Compared to North Indian rivers, which flow constantly from the Himalayas, South Indian rivers have more waterfalls and are not as good for big ships.

🎯 Exam Tip: Structure your answer clearly into two parts: a description of the South Indian river system, followed by a point-by-point comparison with the North Indian river system. Use clear and concise language.

Question 3. Write a note on Saraswati river.
Answer: The Saraswati river holds significant historical and mythological importance. According to the Rig Veda, it is considered "Naditame" (best among all rivers), "Amtritame" (best among mothers), and "Devitame" (best among goddesses). Indian archaeological studies suggest that the river originated from the Rupan glacier in the Shivalik range of the Himalayas, forming a water current. After reaching 'Adi Badri', it was joined by tributaries like Drishadvati and Hiranyavati. Today, the river flowing between the Satluj and Yamuna rivers is identified as the Saraswati. Due to tectonic movements and changes in land elevation, the river shifted westward and eventually dried up on the Earth's surface due to a lack of water supply. It slowly became extinct but continues to flow beneath the Earth, known as 'Antah Salila'. Research by ISRO provides evidence for its ancient drainage system, linking it to features like Brahm Sarovar in Kurukshetra and Pehva semi-circular lakes. It also suggests that visible river drainage from Punjab, Haryana, and North-Western Rajasthan to Pakistan in the form of Ghaghar Hakra is part of the old Saraswati river system. The Nara river is an example of the presence of this underground, inland-flowing extinct river. Evidence from early excavations shows that the Harappan Civilization was sometimes called the Indus Valley Civilization. The Saraswati river played a pivotal role in the early history and development of civilization in ancient India.
In simple words: The Saraswati river is a very old and important river mentioned in ancient texts. It started in the Himalayas and flowed through a large area but later dried up due to land changes. Scientists are still finding proof of its old path and hidden flow underground.

🎯 Exam Tip: When writing a note on a historical or geographical feature, include its significance, origin, key characteristics, and any relevant modern research findings.

Question 1. Show the river Ganga and its tributaries on an outline map of India.
Answer:

🎯 Exam Tip: When drawing maps, clearly label the main river and its significant tributaries. Ensure the general direction of flow and confluence points are accurate.

Question 2. Show the rivers draining in the Arabian Sea on an outline map of India.
Answer:

🎯 Exam Tip: When marking rivers on a map, use a distinct color (e.g., blue) for water bodies and label them clearly. Show the general flow direction towards the sea.

Question 3. Show the salt water lakes and freshwater lakes on an outline map of Rajasthan.
Answer:

The map above shows an outline of Rajasthan with key freshwater and saltwater lakes marked.
Freshwater Lakes (Blue Circles):
1. Fatchsagar
2. Pichhola
3. Udaisagar
4. Jaisamand
5. Rajsmand
6. Nakki
7. Balsmand
9. Pushkar
10. Annasagar
11. Naval Sagar
Saltwater Lakes (Red Circles):
S. Sambhar
L. Lunkaransar

🎯 Exam Tip: When drawing or marking on a map, create a clear legend to differentiate between different types of features, like freshwater and saltwater lakes.

Additional Questions Solved

Multiple Choice Questions (MCQs)

Question. 1. Ganga river originates from the glacier named
(a) Pirpanjal
(b) Siachin
(c) Kailash
(d) Gangotri
Answer: (d) Gangotri
In simple words: The big Ganga river starts from the Gangotri glacier, which is a huge block of ice.

🎯 Exam Tip: Always remember the specific origin point for major rivers, as this is a common factual question.

Question 3. Bhakra Nangal Dam has been constructed on the river:
(a) Chenab
(b) Ravi
(c) Satluj
(d) Jhelum
Answer: (c) Satluj
In simple words: The Bhakra Nangal Dam, which is a very important dam, was built on the Satluj river.

🎯 Exam Tip: Know the specific river on which major dams or projects are built, as these connections are often tested.

Question 4. The states which are involved in a dispute regarding the distribution of water of river Kaveri are
(a) Karnataka and Odisha
(b) Karnataka and Tamil Nadu
(c) Tamil Nadu and Kerala
(d) Kerala and Karnataka
Answer: (c) Tamil Nadu and Kerala
In simple words: The states of Tamil Nadu and Kerala have disagreements about how to share the water from the Kaveri river.

🎯 Exam Tip: Be aware of inter-state river disputes, especially for important rivers like the Kaveri, as they highlight significant geographical and political issues.

Question 5. The river which does not originate from Aravalli is
(a) Banas
(b) Kothari
(c) Tapti
(d) Kapile
Answer: (b) Kothari
In simple words: The Kothari river does not start from the Aravalli mountain range, unlike some other rivers in the region.

🎯 Exam Tip: Pay attention to rivers and their specific origin points, especially when a question asks for exceptions.

Question 6. The river Chambal is the tributary of river
(a) Ganga
(b) Yamuna
(c) Indus
(d) Brahmaputra
Answer: (d) Brahmaputra
In simple words: The Chambal river flows into and joins the larger Brahmaputra river.

🎯 Exam Tip: Remember the main river each major tributary joins, as this defines the larger river system.

Question 8. Which of the following is not the drainage system of the Northern India:
(a) The Indus river system
(b) The Ganga river system
(c) The Peninsular river system
(d) The Brahmputra river system
Answer: (c) The Peninsular river system
In simple words: The rivers of the Peninsular system are in South India, not North India, so they are not part of the Northern India drainage.

🎯 Exam Tip: Clearly differentiate between the major river systems of North India (Himalayan rivers) and South India (Peninsular rivers).

Question 9. Which of the following is one of the fresh water lakes of Rajasthan?
(a) Didwana
(b) Sambhar
(c) Fatehsagar
(d) Lunkarnsar
Answer: (c) Fatehsagar
In simple words: Among the options, Fatehsagar is a lake with fresh water in Rajasthan. The others listed are salt water lakes.

🎯 Exam Tip: Categorize lakes by water type (fresh or salt) and location for quick recall in MCQs.

Question 10. The rivers which do not reach the sea, form the
(a) Bay of Bengal drainage system
(b) Inland drainage system
(c) Arabian Sea drainage system
(d) None of the options
Answer: (b) Inland drainage system
In simple words: Rivers that do not flow into an ocean or sea but disappear within the land create what is called an inland drainage system.

🎯 Exam Tip: Understand the definition of different drainage systems (e.g., inland, Arabian Sea, Bay of Bengal) based on where the water ultimately flows.

Question 12. Which river is not included in the Arabian Sea drainage system:
(a) The Luni river
(b) The Mahi river
(c) The West Banas river
(d) The Kakri river
Answer: (d) The Kakri river
In simple words: The Kakri river is not part of the river system that flows into the Arabian Sea. It is generally an inland river.

🎯 Exam Tip: Memorize the main rivers associated with each major drainage system (e.g., Arabian Sea, Bay of Bengal, Inland) to correctly identify exceptions.

Question 13. The river Manth merges in the:
(a) Deedwana lake
(b) Sambhar lake
(c) Lunkaransar lake
(d) None of the options
Answer: (b) Sambhar lake
In simple words: The Manth river flows into and joins the Sambhar lake.

🎯 Exam Tip: Note which rivers feed into specific lakes, especially in regions with inland drainage.

Question 14. The river which is a part of Bay of Bengal Drainage system is
(a) Kantali
(b) Mahi
(c) Khari
(d) Ghaghar
Answer: (c) Khari
In simple words: The Khari river is a part of the river system whose waters eventually flow into the Bay of Bengal.

🎯 Exam Tip: Distinguish between rivers belonging to different major drainage systems (Bay of Bengal vs. Arabian Sea vs. Inland).

Very Short Answer Type Questions

Question 2. Which rivers form the Indus River System.
Answer: The Indus River System is made up of several important rivers. These rivers are the Satluj, Vyas, Chenab, Ravi, and Jhelum. All these rivers flow together to create the Indus system.
In simple words: The Indus river system includes rivers like Satluj, Vyas, Chenab, Ravi, and Jhelum.

🎯 Exam Tip: When listing rivers in a system, ensure you include all major tributaries mentioned in your textbook.

Question 3. Which two rivers meet at Devprayag?
Answer: The two rivers that meet at a place called Devprayag are the Bhagirathi and the Alaknanda. This special meeting point is where the main Ganga river begins its journey.
In simple words: The Bhagirathi and Alaknanda rivers join together at Devprayag.

🎯 Exam Tip: Remember that Devprayag is a significant Hindu pilgrimage site and is considered the birthplace of the Ganga river.

Question 4. Which district owes its fertility to the delta of the Kaveri and what is it called?
Answer: The Thanjavur district is very fertile because of the delta formed by the Kaveri river. Because of this rich land, the district is famously known as the "Garden of the South." The delta provides rich soil and water for farming.
In simple words: Thanjavur district is fertile due to the Kaveri delta and is called the "Garden of the South."

🎯 Exam Tip: Note the direct relationship between river deltas and agricultural fertility, a common pattern in geography.

Question 5. Which is the largest river of the Peninsular plateau?
Answer: The Godavari is the largest river flowing across the Peninsular plateau of India. It is often called the 'Ganga of the South' due to its size and importance.
In simple words: The Godavari river is the biggest river on the Peninsular plateau.

🎯 Exam Tip: Identify key geographical features by their largest or most prominent examples, like the Godavari for the Peninsular plateau.

Question 6. On which river is the Hirakud dam constructed?
Answer: The Hirakud dam is built on the Mahanadi river. This dam is one of the longest in the world.
In simple words: The Hirakud dam is on the Mahanadi river.

🎯 Exam Tip: Link famous dams with their respective rivers to easily recall facts about important water projects.

Question 7. What is the nature of the rivers of North?
Answer: The rivers in North India are perennial, which means they flow with water throughout the entire year. This is mostly because they are fed by melting snow from the Himalayas and rainfall.
In simple words: North Indian rivers always have water because they are fed by snowmelt and rain.

🎯 Exam Tip: Understand the term 'perennial' and how it contrasts with 'seasonal' rivers, which depend solely on rainfall.

Question 8. What is another name for the river Ganga when it enters Bangladesh?
Answer: When the Ganga river flows into Bangladesh, it is known by a different name, the Padma. This new name is used for the river within Bangladesh.
In simple words: In Bangladesh, the Ganga river is called the Padma.

🎯 Exam Tip: Remember that major rivers often change names as they pass through different regions or countries.

Question 9. Name the lake of Rajasthan which is famous as the religious importance.
Answer: Pushkar Lake in Rajasthan is well-known for its great religious importance. Many pilgrims visit this sacred lake, especially during the Pushkar Fair.
In simple words: Pushkar Lake in Rajasthan is famous for religious reasons.

🎯 Exam Tip: Connect important geographical features like lakes to their cultural or religious significance where applicable.

Question 10. Who constructed the lake Rajsamand?
Answer: Rajsamand Lake was built by Maharaja Raj Singh. He had it constructed in the year 1662 to help with water needs in the region.
In simple words: Maharaja Raj Singh built Rajsamand Lake in 1662.

🎯 Exam Tip: For historical constructions like lakes or dams, try to remember the key person involved and the approximate time period.

Question 11. Which is the famous Pichhola lake situated and who constructed it?
Answer: The well-known Pichhola Lake is located in the city of Udaipur. It was constructed by a ruler named Ranna Lakha. This lake is a beautiful centerpiece of Udaipur.
In simple words: Pichhola Lake is in Udaipur and was built by Ranna Lakha.

🎯 Exam Tip: When asked about famous landmarks, always include both their location and their historical builder if known.

Question 12. Which is the largest salt water lake of India?
Answer: The Sambhar Lake is recognized as the largest saltwater lake in India. Its large size makes it an important natural resource for salt production.
In simple words: Sambhar Lake is the biggest salt water lake in India.

🎯 Exam Tip: Distinguish between freshwater and saltwater lakes, and know the largest example of each type in India.

Question 13. Which is the second largest fresh water lake of the world?
Answer: The Jaisamand Lake is considered the second largest freshwater lake in the world. It is a very big reservoir of fresh water.
In simple words: Jaisamand Lake is the world's second largest freshwater lake.

🎯 Exam Tip: Be precise with superlatives (largest, second largest) and specify the category (freshwater, saltwater, world, India, etc.).

Question 14. Which is the second largest fresh water lake of the world?
Answer: The Jaisamand Lake is known as the second largest freshwater lake globally. It plays a key role in providing water to its region.
In simple words: Jaisamand Lake is the second biggest freshwater lake in the world.

🎯 Exam Tip: Double-check if questions are identical to ensure no detail is missed, even if answers might be similar.

Question 15. Divide the drainage system of the North India.
Answer: The drainage system of North India is divided into three main parts. These systems help carry water across the northern regions.
1. The Indus river system.
2. The Ganga river system.
3. The Brahmaputra river system.
In simple words: North India's drainage is split into three parts: Indus, Ganga, and Brahmaputra river systems.

🎯 Exam Tip: When asked to divide a system, ensure you list all the major components mentioned in the curriculum.

Question 1. Write the main features of the river Godavari.
Answer: The Godavari river has several important features. It is the largest river on the Peninsular plateau and starts from Trayambak in the Western Ghats, near Nashik in Maharashtra. As the river gets wider near its end, it forms many islands. Finally, it creates a triangular delta where it meets the sea, which is very fertile.
In simple words: The Godavari is the largest Peninsular river, starting from the Western Ghats. It forms islands and a triangular delta at its mouth.

🎯 Exam Tip: For descriptive questions about rivers, always include its origin, key characteristics, and delta formation.

Question 2. What is the significance of the river combination (co-ordination) concept?
Answer: The concept of linking or combining rivers is very important for India. This plan aims to help solve problems of both droughts and floods. It also ensures that water is evenly spread across different parts of the country, helping regions that face water scarcity.
In simple words: River linking helps stop droughts and floods, and makes sure water is shared fairly across the country.

🎯 Exam Tip: Understand the practical benefits of water management projects, especially how they address extreme weather challenges like floods and droughts.

Question 3. What is the importance of rivers in brief?
Answer: Rivers are very important for the economic growth of a country in many ways. Historically, many great civilizations grew up in river valleys, making them central to human life and activities since ancient times in India. People build many dams on rivers to control water, and river water is used for moving boats (navigation) and watering farms (irrigation). Rivers support ecosystems and provide fresh water.
In simple words: Rivers help a country's economy, supported ancient civilizations, provide water for farms and boats, and are important for life.

🎯 Exam Tip: When discussing the importance of rivers, cover both historical-cultural aspects and modern-economic uses.

Question 4. Write about the Inland drainage system of India.
Answer: India's inland drainage system includes rivers that do not reach the sea. These rivers are usually seasonal, meaning they only flow during the rainy season. They end by either flowing into small lakes or disappearing into the desert. There are not many such rivers. For example, in Rajasthan, rivers like Mantha, Medha, Khari, Khandela, and Rupangarh flow into Sambhar Lake. The Kakari river in Jaisalmer ends in Bhuj Lake. This unique system helps maintain local water bodies.
In simple words: Inland drainage rivers don't reach the sea; they are seasonal and flow into lakes or deserts, like those in Rajasthan.

🎯 Exam Tip: Understand that not all rivers flow into an ocean; some form 'inland drainage' systems, which are unique and important to arid regions.

Question 5. Which are the two constituents of the National Plan of river-co-ordination concept?
Answer: The National Plan for river co-ordination aims to manage water resources effectively. Its two main components are:
1. Building reservoirs and canals to store and transport water.
2. Interlinking rivers, such as connecting the Krishna, Kaveri, and Pennar rivers. This helps make more water available for irrigation across different regions.
In simple words: The plan has two parts: building dams and canals to store water, and linking rivers to share water for farming.

🎯 Exam Tip: When describing national plans, identify the core objectives and the main methods used to achieve them.

Question 1. What do you know about the rivers and lakes of Rajasthan?
Answer: Rajasthan has a diverse system of rivers and lakes.
Rivers of Rajasthan:
(a) The Chambal river is unique as it is the only river in Rajasthan that flows all year round (perennial).
(b) The state's drainage system is divided into three types: rivers flowing into the Arabian Sea, rivers flowing into the Bay of Bengal, and inland drainage rivers that do not reach the sea.
(c) Rivers that drain into the Arabian Sea include the Luni, Mahi, Sabarmati, and West Banas. The Luni starts from Nagapahar in Ajmer and flows into the Rann of Kutchchh. The Mahi river starts in Amoru district of Madhya Pradesh, flows into the Bay of Bengal, and forms a boundary between Dungarpur and Banswara. Important dams like Mahi Bajaj Sagar Dam are built on it, and its tributaries include Son, Amba, and Jakham.
(d) Rivers draining into the Bay of Bengal include the Chambal, Banas, and Banganga, which eventually join the Yamuna river. The Chambal originates from the Janapau hills, flows through parts of Rajasthan like Chittaur and Kota, and merges with the Yamuna. Several significant dams such as Gandhi Sagar, Ranapratapsagar, Jawaharsagar, and Kota Barrage are built on the Chambal. The Banas river, also known as Van-Ki-Asha, starts near Kumbhalgarh and joins the Chambal. The Bisalpur dam is located on the Banas. Other rivers in this system are Bedach, Gambhiri, Kothari, Khari, Kalisindh, and Parvati. The Inland drainage system includes rivers like Kantali, Kakni, Ghaggar, Sabi, and Mantha, which disappear within the land.
Lakes of Rajasthan:
(a) Rajasthan has several salt water lakes, including Sambhar, Deedwana, Lunkaransar, Panchbhadra, Falaudi, Kawod, Kachhore, and Khosa. Sambhar Lake is the largest salt water lake in India.
(b) The state also has many sweet water (freshwater) lakes like Jaisamand, Rajsamand, Pichhola, Aanasagar, Pushkar, Silisedh, Udaisagar, Fatchesagar, Nakki, and Kailana.
(c) Jaisamand Lake is particularly notable as it is the world's second largest freshwater lake and the largest freshwater lake in Rajasthan.
(d) Silisedh and Kolayat are other significant lakes in Rajasthan. These diverse water bodies play a crucial role in the state's ecosystem and economy.
In simple words: Rajasthan's rivers include the perennial Chambal and others flowing into the Arabian Sea (like Luni, Mahi) or the Bay of Bengal (like Banas, Chambal), plus inland rivers that end in deserts or lakes. Its lakes are of two types: salt water (like the huge Sambhar Lake) and fresh water (like Jaisamand, which is the state's largest and the world's second largest freshwater lake).

🎯 Exam Tip: For comprehensive answers about regional geography, ensure you cover both river systems (including major rivers, their origins, and destinations) and different types of lakes with key examples.