Question

9. Define the term soil erosion. What steps can be taken to control soil erosion?

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Answer 1

Answer:

The removal of the topsoil by water, wind and human activities is called soil erosion.

Two ways to prevent soil erosion are:

Shelter belts: Trees should be planted in several rows to check the speed of the wind. This reduces soil erosion because of wind.

Constructing dams: Because the rivers cause soil pollution, dams are built in the upper course of the rivers to check soil erosion.

Explanation:

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Answer 2

Answer. (i) Ploughing along the contour lines can decelerate the flow of water down the slopes. This is contour ploughing. (ii) Steps can be cut out on the slopes maping terraces.