Question

What is soil erosion? Mention two steps that could be taken to prevent soil erosion.

Answer 1

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.