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 the 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.

Asked by Shivani Kumari | 2 years ago |  339

1 Answer

Solution :-

(i) Any elevated area, such as a mountain or an upland, separates two drainage basins. Such an upland is known as a water divide. For example, the water divide between the Indus and the Ganga river systems.

(ii) Ganga River basin is the largest river basin in India

(iii) Indus river origin - Near Manasarovar Lake, Tibet

     Ganga River origin - Gangotri glacier in Uttaranchal

(iv) The two headstreams of Ganga are Alaknanda and Bhagirathi. They both meet to form Ganga at Devprayag.

(v) In Tibet, the river carries a smaller volume of water and less silt as it is a cold and dry area. In India, it passes through a region of high rainfall. Here the river carries a large volume of water and a considerable amount of silt.

(vi) Narmada and Tapi are the two Peninsular rivers that flow through the trough.

(vii) Rivers have been of fundamental importance throughout human history. Water from rivers is a basic natural resource, essential for various human activities. Therefore, riverbanks have attracted settlers from ancient times. Using rivers for irrigation, navigation, hydropower generation is of special significance — particularly to a country like India, where agriculture is the major source of livelihood of the majority of its population.

Answered by Vishal kumar | 2 years ago

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