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What material do Himalayan rivers bring down from the mountains?

Answer and explanation

Correct answer: Sediment and silt

The direct answer is B: sediment and silt. Himalayan rivers have strong erosive power in their steep mountain courses. They loosen pieces of rock and soil, carry them downstream, and finally spread much of this material across the plains. Fine river-borne material is called silt; the wider collection of transported particles is sediment. When it is deposited, it helps form fertile alluvial soil. B is correct because sediment and silt are natural products of river erosion and transport. A is wrong because rivers do not normally carry molten iron from mountains. C is wrong because sea salt is not the main material eroded from Himalayan rocks, and “only” makes the statement especially false. D is unrelated to natural river transport. Memory cue: Himalayan erosion supplies alluvium to the plains.

Related tags

SedimentSiltAlluvium

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