Question

How do human activities affect the rate of erosion​

Answer 1

Firstly the removal of trees is a removal of nutrients and minerals from the soil as the source of humus is greatly reduced. The natural dead organic material that supplies the soil with its humus is generally leaves that have fallen from the trees, animal droppings, tree fruit or decaying trees in the soil. Secondly, deforestation accelerates soil erosion by leaving large areas exposed to heavy rainfall (which can cause leaching or flash floods) or wind erosion. Without the roots of the trees to keep the soil structure in place the soil is loose and easier to erode. The tropical rainforests of Brazil are seeing huge areas of forest being cut down each day. Each year about 13 million hectares of the world’s forests are lost due to deforestation.

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Short Answer-

removing trees for our uses..