Question

Answer hots questions of social science

Answer 1

The rivers carry down silt,also known as alluvium. This gets washed away by the rivers and is deposited at deltas. Hence the Ganga Brahmaputra plains are fertile

Answer 2

5. it is because the rivers bring very fertile soil called alluvium which is best for agriculture,then the soil 
is deposited on the plain and the plain is hence very fertile.It becomes a fertile alluvial plain.

6. The rivers of Inland Drainage Basin consists of those in Western Rajasthan which are are few and they disappear within a year due to scanty rainfall. Most of them are of an ephemeral character. They drain towards the individual basins or salt lakes like the Sambhar or are lost in the sands having no outlet to the sea. The Luni is the only rivers of this category that drains into the Rann of Kuchch....

7. The rivers of peninsular plateaus are non-perennial because they depend on rainfall as the source of water, rather than any permanent source like a glacier. In the summer season, as the rainfall is not sufficient, the rivers become dry.

hope it helps you!!