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प्रश्न
What is soil erosion? Mention two steps that could be taken to prevent soil erosion.
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उत्तर
The removal of the topsoil by water, wind and human activities is called soil erosion.
Two ways to prevent soil erosion are
- Shelterbelts: 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.
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