Question

why is ganga and bramhaputra is highily populated

Answer 1

The areas near Ganga and Brahmaputra is highly populated as it is common for people to settle near water bodies especially rivers as it is easy to obtain water for agriculture and other purposes. Also the river basin has fertile soil suitable for cultivation and growing crops. This is why the river basins are highly populated.

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Answer 2

Ganga and Brahmaputra region are highly populated because climate of those region are very good for agriculture and for better life there water is easily available for agriculture is those type of crop which need more and more water are very easily planted h e r e like paddy