Question

what is an inland drainage and why it is called as inland drainage?

Answer 1

When rivers don't take the normal course into the ocean but drain into a large lake away from the sea it is called as Inland drainage.
 

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Answer 2

Inland drainage are waterways which do not draininto oceans. They rather drain into lakes or inlandseas. ... Inland drainage is that drainage in which rivers do not reach an ocean or sea but empty their waters in a lake or an inland sea.

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