Wednesday 23 December 2020

3(a) India: Drainage

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3(a)   India: Drainage 

Answer the following questions in a single word to one sentence length:


Q 1.Which among the following is not a tributary of Ganga (Ganges):

1) Yamuna               2) Beas                 3) Gandak                      4) Son

Ans: Beas

 

Q 2. Which of these lakes is not natural?

1) Renuka                2) Chilka              3) Dal                             4) Ranjit Sagar

Ans: Ranjit Sagar

 

Q 3. Which drainage system is biggest in India?

1)    Ganga            2) Godavari            3) Brahmaputra             4) Indus

Ans: Ganga

 

Q 4. Which is biggest delta of the world? Ans: Sundarban Delta.

Q 5. What is meant by Doab?

Ans: The tract of land lying between two rivers.

 

Q 6. What is length of Indus and how much of its portion lies in India?

Ans: The total length of the Indus River is 2880 km. and its length in India is 709 km.

 

Q 7. Name three peninsular rivers ending up in Bay of Bengal.

Ans: Godavari, Krishna, Kaveri and Mahanadi.

 

Q 8. In how many parts can we divide drainage systems in India?

Ans4: The river system of India is divided into four parts: -

a)  Himalayan River System

b)  Peninsular River System

c)  Coastal Rivers

d)  Inland Drainage

 

Q 5 River Indus originates from which glacier

 Ans: Bokhar-Chu Glacier (Tibet)

 

Q10. Name any two seasonal rivers. Ans: Mahanadi and Godavari


Q11. Which is birth place of Mahanadi? Name its two tributaries.

Ans: The Mahanadi originates from Dandakaranya (Chhattisgarh). Jab and Shonath are its tributaries.

 

Q12. Name five natural lakes of India.

Ans: Chandartal, Dal, Pulikat, Chilka and Pushkar.

 

C) Short Answer Questions:


Give short answers for the following questions:

 

Q 1. Pollution is increasing in Ganga. What is being done to check it?

Ans: The level of pollution in the river Ganga is increasing day by day. Time to time Governments has taken serious steps to prevent it. Ganga Action Plan was started in April 1986. In 2015, the government has taken various steps for cleaning river Ganga.

 

Q 2. Write a note on internal drainage in India.

Ans: Some rivers in India do not fall in sea and they go underground. 465 kilometers long river Ghaggar is one of the major examples of these rivers. Similarly Luni river of Rajasthan and rivers flowing in Ladakh are also the important examples

.

Q 4. Which is 'Vridh Ganga'?

Ans: Godavari is the second largest river of India after Ganga and is also known as old Ganga or Southern Ganga. Its source is in Triambakeshwar, Maharashtra in Brahamgiri mountains. Its length is 1456 kilometers.

 

Q 5. On which river 'Dhuandhar falls' lies? Name of its tributaries also.

Ans: Dhuandhar fall lies on Narmada river. Narmada river near Jabalpur in Madhya Pradesh makes a beautiful waterfall called Dhuandhar fall. Burhner River, Shakkar River, Dudhi River,

D) Long Answer Questions


Ganjal River and Banjar rivers are its main tributaries.

 

Answers to the following questions in detail:

 

Q1.Which      are   Himalayan  and   Peninsular  rivers?  Differentiate    between                        their characteristics?

Ans: Himalayan Rivers: The three major rivers in the Himalayan river system are Indus, Ganga, Brahmaputra and its tributaries. These rivers are perennial rivers.

Peninsular rivers: These are seasonal rivers. Most of the Peninsular Rivers which includes Mahanadi, Godavari, Krishna, Kaveri etc. flow towards East and also forms deltas.


Rivers of the Himalayas

Peninsular rivers

1.   These rivers originate from the Himalayan mountains.

2.   The Himalayan rivers have large drainage basins.

3.   These rivers are perennial rivers.

4.   These rivers are at young stage.

5.         These rivers makes deltas. Ganga- Brahmaputra, Sundarban Delta is the largest delta of the world.

1.    These originate from the mountain ranges of peninsular plateau.

2.   Drainage system of these rivers is small.

 

3.   These are seasonal rivers.

4.   These have attained mature stage.

5.   Godavari, Krishna, Kaveri make deltas. Narmada and Tapi make estuaries.

 

 

Q 2. Describe three drainage systems of India and explain any one of them in detail.

Ans: Three drainage systems of India: -

a)   Himalayan River System

 

b)    Peninsular river system,

 

c)   Coastal Rivers

 

Himalayan River System

 

The rivers of the Himalayas are perennial. These rivers remain full with water throughout the year. Three major rivers Indus, Ganga, Brahmaputra, and its tributaries are included in this.   The rivers of the Himalayas are described as follows :-

1.     Indus and its tributaries:- Indus River starts from Bokhar-Chu Glacier of Tibet. In Tibet Indus is known as 'Singhi Khamban' or 'Mouth of lion'. The total length of the Indus River is 2880 km and its length in India is 709 km. Its tributaries are Zaskar, Jehlum, Chenab, Sutlej, Beas, Ravi , Shyok, Gilgit, Kabul, Sakradu and Shigo etc.

2. Ganga Drainage System:- The river Ganga originates from the Gangotri (Gomukh) glacier      in Uttrakhand. Its main stream is known as Bhagirathi. It enters Bay of Bengal to make confluence with Brahamputra. It creates world's largest delta called Sundarban Delta. Its tributaries are Ram Ganga, Gomti, Ghagra, Gandhak, Kosi, Yamuna, Son, Kane etc.


3) Brahmaputra Drainage:- Brahmaputra  origin in Angsi glacier,  located on the northern side  of the Himalayas in Burang, Tibet near the place of origin of Satluj. It turns towards south and confluences with Ganga making a largest delta of the world, called Sundarbans  Delta.  Subansiri, Kamaing, Dhansiri, Dihang, Tista, Torsa, etc. are its major tributaries.

Q3. What are economic benefits of North Indian and South Indian rivers?

 

Ans: The role of rivers in the Indian economy - Indus valley civilization which was one of the

 

Ancient civilizations in the world, flourished on the banks of the Indus and its tributaries.  A  river is the cradle of civilization and shortage of water leads to displacement of civilization also. Not only civilizations have moved with water the folklores, traditions, dances have also got related with water. Rivers of India are the lifelines of Indian Economy. Water is the most important natural source. It is used for irrigation, Industries and for household activities. Electricity is produced by dams built on these rivers play an important  role in the functioning   of Industries.

 

 

 

 

 


 

EXERCISES

Show in the outline map of India:

(i) Ganga (ii) Brahmputra

(iii) Wular and Sambhar lakes (iv) Gobind Sagar Lake

2. Show in the outline map of India:

(i) Ganga with its tributries, three each on both sides.

(ii) Two peninsular rivers flowing towards west.

(iii) Three peninsular rivers flowing towards East and ending up in Bay of

Bengal.

Answer the following questions in a single word to one sentence length:

1. Which among the following is not tributory of Ganga (Ganges):

(i) Yamuna (ii) Beas

(iii) Gandak (iv) Son

2. Which of these lakes is not natural:

(i) Renuka (ii) Chilka

(iii) Dall (iv) Ranjit Sagar

3. Which drainage system is biggest in India:

(i) Ganga (ii) Godavari

(iii) Brahmputra (iv) Indus

4. Which is biggest delta of the world?

5. What is meant by Doab?

6. What is length of Indus and how much of its portion lies in India?

7. Name three peninsular rivers ending up in Bay of Bengal.

8. In how many parts can we divide drainage systems in India?

9. River Indus origionates from which glacier?

10. Name any two seasonal rivers.

11. Which is birth place of Mahanadi? Name its two tributories.

12. Name five natural lakes of India.

Give short answers for the following questions:

1. Pollution is increasing in Ganga. What is being done to check it?

2. Write a note on Internal drainage in India.

3. Which is ‘Vridh Ganga’? Name its tributories.

4. On which river ‘Dhuandhar falls’ lies? Name its tributries also.

 

Answer the following questions in detail:

1. Which are Himalayan and Peninsular rivers? Differentiate between their characteristics.

2. Describe three drainage systems of India and explain any one of them in detail.

3. What are economic benefits of North Indian and South Indian rivers?