Question

Why does the kosi river bring such huge quantity of sediments from the upper reaches?

Answer 1

Kosi river originates from the part of Himalaya which is comparatively younger than other path and result of that it Erodes more sediments then or the river. also it gets steeper in slope in upper course of the river which increases its sediment carrying capacity by increasing river's velocity.

Answer 2

Answer:

The Kosi in particular has the largest elevation drop of all Himalayan rivers.

the uptake of silt is higher than most rivers. Once it hits the plains (and especially plains in Nepal and Bihar) this sedimentation is spread out over the basin.

The nature of sediment is also determined by the geology of the region. There are different types of minerals, vegetation, soil and climatic condition in the river's flow region that make it sediment rich

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