CBSE Class 9 Social Science Drainage Assignment

Read and download free pdf of CBSE Class 9 Social Science Drainage Assignment. Get printable school Assignments for Class 9 Geography. Class 9 students should practise questions and answers given here for Contemporary India Chapter 3 Drainage Geography in Class 9 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 9 Geography prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations

Assignment for Class 9 Geography Contemporary India Chapter 3 Drainage

Class 9 Geography students should refer to the following printable assignment in Pdf for Contemporary India Chapter 3 Drainage in Class 9. This test paper with questions and answers for Class 9 Geography will be very useful for exams and help you to score good marks

Contemporary India Chapter 3 Drainage Class 9 Geography Assignment


Choose the right answer from the four alternatives given below.

(i) Which one of the following describes the drainage patterns resembling the branches of a tree?
(a) Radial
(b) Centrifugal
(c) Dendritic
(d) Trellis
Answer: (c) Dendritic
 
(ii) In which of the following states is the Wular lake located?
(a) Rajasthan
(b) Punjab
(c) Uttar Pradesh
(d) Jammu and Kashmir
Answer: (d) Jammu and Kashmir
 
(iii) The river Narmada has its source at
(a) Satpura
(b) Amarkantak
(c) Brahmagiri
(d) Slopes of the Western Ghats
Answer: (b) Amarkantak
 
(iv) Which one of the following lakes is a salt water lake?
(a) Sambhar
(b) Wular
(c) Dal
(d) Gobind Sagar
Answer: (a) Sambhar
 
(v) Which one of the following is the longest river of the Peninsular India?
(a) Narmada
(b) Godavari
(c) Krishna
(d) Mahanadi
Answer: (b) Godavari
 
(vi) Which one amongst the following rivers flows through a rift valley?
(a) Mahanadi
(b) Krishna
(c) Tungabhadra
(d) Tapi
Answer: (d) Tapi
 
Question : Answer the following questions briefly,
(i) What is meant by a water divide? Give an example.
(ii) Which is the largest river basin in India?
(iii) Where do the rivers Indus and Ganga have their origin?
(iv) Name the two head-streams of the Ganga. Where do they meet to form Ganga?
(v) Why does the Brahmaputra in its Tibetan part have less silt, despite a longer course?
(vi) Which two peninsular rivers flow through trough?
(vii) State some economic benefits of rivers and lakes.
Answer :
(i) Any upland or a mountain separating two adjoining drainage basins is known as water divide. Though the Indus, the Sutlej and the Brahmaputra rivers rise very close to each other near the Mansarovar Lake but because of the water divides they flow in different directions.
(ii) The Ganga basin is the largest river basin in India.
(iii) The Indus river has its origin in Tibet near the Mansarovar Lake while the Ganga River has its origin in Gangotri Glacier in Uttaranchal.
(iv) Alaknanda and Bhagirathi are the two headstreams of the Ganga. They meet at Devaprayag.
(v) The Brahmaputra river, which is known as Tsangpo in Tibet, receives very little volume of water in Tibet so; it has very little silt there. On the other hand, this river when enters India it passes through such a region which receives heavy rainfall. As such in India, in India it carries a large volume of water and larger amount of silt.
(vi) Narmada and Tapi are two peninsular rivers which flow through trough.
(vii) Lake can be used for generating hydroelectricity. A lake can be a good tourist attraction. Rivers have been the centre of human civilization since ancient times. Even today, many big cities are situated on the bank of a river. River water is used for irrigation, navigation, hydroelectricity, fisheries, etc.
 
Question : Below are given names of a few lakes of India. Group those under two categories - natural and created by human beings.
(a) Wular                      (b) Dal
(c) Nainital                   (d) Bhimtal
(e) Govind Sagar          (f) Loktak
(g) Barapani                (h) Chilika
(i) Sambhar                 (j) Rana Pratap Sagar
(k) Nizam Sagar           (l) Pulicat
(m) Nagarjuna Sagar    (n) Hirakund.
Answer :
(a) Wular: Natureal                          (b) Dal: Natureal
(c) Nainital: Natureal                        (d) Bhimtal: Natureal
(e) Govind Sagar: Human beings     (f) Loktak: Natureal
(g) Barapani: Natureal                      (h) Chilika: Natureal
(i) Sambhar : Natureal                       (j) Rana Pratap Sagar: Human beings
(k) Nizam Sagar: Human beings       (l) Pulicat : Natureal
(m) Nagarjuna Sagar: Human beings (n) Hirakund: Human beings
 
Question : Discuss the significant difference between the Himalayan and the Peninsular Rivers.
Answer :  The following table differentiates between the Himalayan and the Peninsular Rivers:
The Himalayan Rivers
1. The Himalayan rivers rise in the snow-covered mountains are perennial type.
2. They flow in levelled Northern Plains and are highly useful for irrigation, cultivation and also navigation purpose.
3. The Himalayan Rivers bring with them fertile alluvium which they deposit in the Indo-Gangetic plains.
4. Canals have been dug to use the water of these rivers for irrigation.
5. Many important towns and centers of trade are situated on the banks of these rivers.
6. The porous soil of Northern Plain absorbs the water which is later on used as ground water by digging wells and tube wells.
The Peninsular Rivers
1. The mountains in which the Peninsular Rivers rise not snow covered. Hence they dry up during summer.
2. The Peninsular Rivers flow on rocky surface and so, they are neither navigable nor useful for irrigation.
3. They do not bring with them any alluvium. Due to their swift current the depositional activity are negligible.
4. as the terrains are rocky and the banks of these rivers are high so, canals can not be dug. However, dams are built to store the flood water for irrigation with the help of small channels.
5. Very few important towns and centers of trade are situated on the banks of these rivers.
6. The underlying soil being rocky does not absorb any water. Hence, no wells can be dug.
 
Question :  Compare the east flowing and the west flowing rivers of the Peninsular plateau.
Answer :
The following table gives a comparison between the east flowing and the west flowing rivers of the Peninsular plateau:
East Flowing Rivers 
1. The Mahanadi, the Godavari, the Krishna, the Cauvery are the main east flowing rivers of Peninsular India.
2. These rivers drain in the Bay of Bengal.
3. These rivers make deltas at their mouth.
4. These rivers have a developed, large tributary system.
5. These river flow not through very deep canals.
West Flowing Rivers
1. The Narmada and the Tapi are the main west flowing rivers of Peninsular India.
2. These rivers drain in the Arabian sea.
3. These rivers enter the sea through estuaries.
4. These rivers are devoid of a developed tributary system. Their tributaries are quite small in size.
5. These rivers flow in troughs.
 
Question : Why are rivers important for the country’s economy?
Answer : Rivers are highly important for the country’s economy. Following are some of the points which indicate the importance of rivers for the country’s economy:
 The rivers contain natural fresh (sweet) water which is required for the survival of most of the animals including man.
 They provide water for irrigation and cultivation.
 They make soil rich and arable which can be easily brought under cultivation without much labour.
 Used for navigation and transport thus, important for commercial activities.
 Estuaries near the sea-shores, where the sweet water mixes freely with the salty water of the oceans, have proved one of the most biologically productive areas of the world.
 The rivers are being harnessed for generating hydro-electric power.
 Some lakes are also important tourist spots e.g. Dal Lake, Nainital etc.

 

 

Q1 Very short question type

1. Define a river system
2. What is the upper course of a river?
3. Name the rivers that originate from Tibet.
4. Name the headwaters of river Ganga.
5. What is a Dendritic pattern?
6. Which river is also known as ‘Dakshin Ganga’?
7. What are perennial rivers?
8. Define source and mouth of a river.
9. Name the tributaries of river Indus in Jammu and Kashmir.
10. Name the rivers that drain into Arabian sea.

Q2 Highlight the important features of INDUS WATER TREATY. Also, list down the values that are encouraged through this treaty. 
Q3 Write a short note on the GODAVARI BASIN. 
Q4 Why BRAHMAPUTRA in its Tibetan part has less silt despite longer course? 
Q5 State the significance of Lakes. 
Q6 Explain the importance of rivers. 

Contemporary India Chapter 01 India Size and Location
CBSE Class 9 Social Science India Size Location Assignment
Contemporary India Chapter 02 Physical Features of India
CBSE Class 9 Social Science Physical Features of India Assignment
Contemporary India Chapter 03 Drainage
CBSE Class 9 Social Science Drainage Assignment
Contemporary India Chapter 04 Climate
CBSE Class 9 Social Science Climate Assignment
Contemporary India Chapter 05 Natural Vegetation and Wildlife
CBSE Class 9 Social Science Natural Vegetation And Wildlife Assignment
Contemporary India Chapter 06 Population
CBSE Class 9 Social Science Population Assignment
Democratic Politics I Chapter 01 What is Democracy?
CBSE Class 9 Social Science What is Democracy Assignment
Democratic Politics I Chapter 02 Constitutional Design
CBSE Class 9 Social Science Constitutional Design Assignment
Democratic Politics I Chapter 03 Electoral Politics
CBSE Class 9 Social Science Electoral Politics Assignment
Democratic Politics I Chapter 04 Working of Institutions
CBSE Class 9 Social Science Working of Institutions Assignment
Democratic Politics I Chapter 05 Democratic Rights
CBSE Class 9 Social Science Democratic Rights Assignment
India and Contemporary I Chapter 01 The French Revolution
CBSE Class 9 Social Science French Revolution Assignment
India and Contemporary I Chapter 02 Socialism In Europe And The Russian Revolution
CBSE Class 9 Social Science Socialism In Europe And The Russian Revolution Assignment
India and Contemporary I Chapter 03 Nazism and the Rise of Hitler
CBSE Class 9 Social Science Nazism Rise of Hitler Assignment
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CBSE Class 9 Geography Contemporary India Chapter 3 Drainage Assignment

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Assignment for Geography CBSE Class 9 Contemporary India Chapter 3 Drainage

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