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Question
Which of the following helps in preventing soil erosion?
Which of the following helps in preventing soil erosion?
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Solution
The correct option is B Afforestation
Removal of the top layer of soil by the action of air is known as soil erosion.
∙ Afforestation is the process of planting trees to increase plant cover. The roots of the trees bind the soil together strongly and prevent soil erosion.
∙ Deforestation and overgrazing leads to the removal of top layer of soil as the trees and patches are removed and does not recover qucikly. Thus, soil erosion takes place.
∙ Excessive use of fertilizers causes the soil to lose its nutrients thereby causing soil infertility. This hampers the growth of plants and thus, causes soil erosion as plants cannot hold the soil with its roots.
Removal of the top layer of soil by the action of air is known as soil erosion.
∙ Afforestation is the process of planting trees to increase plant cover. The roots of the trees bind the soil together strongly and prevent soil erosion.
∙ Deforestation and overgrazing leads to the removal of top layer of soil as the trees and patches are removed and does not recover qucikly. Thus, soil erosion takes place.
∙ Excessive use of fertilizers causes the soil to lose its nutrients thereby causing soil infertility. This hampers the growth of plants and thus, causes soil erosion as plants cannot hold the soil with its roots.
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