Question
How can soil erosion be prevented? [3 MARKS]
Answer:
:
Preventive measures: 1 Mark each
Soil erosion can be prevented by the following methods:
1. Afforestation:Afforestation means planting trees.The roots of the treeshold the soil layer firmly and prevent soilerosion.
2. Improve drainage: Areas with heavy water runoff canuse underground perforated drainage pipes which will help prevent soil erosion.
3. Contour farming and terracing: It is the practice of tilling sloped land along lines of consistent elevation in order to conserve rainwater and to reduce soil losses from surface erosion.
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:
Preventive measures: 1 Mark each
Soil erosion can be prevented by the following methods:
1. Afforestation:Afforestation means planting trees.The roots of the treeshold the soil layer firmly and prevent soilerosion.
2. Improve drainage: Areas with heavy water runoff canuse underground perforated drainage pipes which will help prevent soil erosion.
3. Contour farming and terracing: It is the practice of tilling sloped land along lines of consistent elevation in order to conserve rainwater and to reduce soil losses from surface erosion.
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