Question

removal of the fertile soil due to running water wind and other agents of gradation

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Answer 1

Explanation:

Wood is a natural material we get from trees.

Answer 2

Answer:

Topsoil is the uppermost layer of the Earth's surface layers. Top soil is soft and light and can be carried away easily. Water and wind cause the topsoil to be removed. This process of carrying of top soil by wind and water is called as soil erosion.