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Why can soil erosion also be a problem in high rainfall regions?

Answer and explanation

Correct answer: Heavy rain can increase surface runoff

The direct answer is A: heavy rain can increase surface runoff and wash soil away. Soil erosion means the removal of the upper, usually fertile, layer of soil. Step by step, intense rain falls faster than the ground can absorb it; extra water flows over the surface; this moving water loosens and carries soil particles downhill. The danger is greater where vegetation is removed or slopes are steep. A is correct because it gives the physical process. B is wrong because running water can move soil. C is wrong because rainfall does reach the land, and some of it becomes runoff. D is wrong because water is a major cause of erosion. The other choices deny basic geography. Memory cue: heavy rain plus fast runoff can mean fertile soil loss.

Related tags

Soil ErosionHigh RainfallRunoff

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