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Question

Which one of the following is not a method to prevent soil erosion?

A
Afforestation
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B
Improve drainage
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C
Deforestation
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D
Contour farming and terracing
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Solution

The correct option is C Deforestation

Soil erosion can be prevented by the following methods:
1. Afforestation: Afforestation means planting trees.The roots of the trees hold the soil layer firmly and prevent soil erosion.
2. Improve drainage: Areas with heavy water runoff can use 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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