Question

Soil erosion can be reduced by

• A. Grazing cattle
• B. Deforestation
• C. Using renewable resources
• D. Contour ploughing
• E. Increasing biodiversity

Answer 1

Answer: (D)

Contour ploughing

A. Grazing cattle can promote soil erosion because as the cattle eat the vegetation, the soil particles loosen and can be easily carried away by wind, water etc.

B. Deforestation leads to soil erosion because roots of the plants held the soil particles tightly and if there will be no trees, the soil particles will be loosened and can be easily carried away by wind or water.

C. Using renewable resources has no effect on soil erosion as renewable sources are the sources that can be replenished naturally over a period of time.

D. Contour ploughing is the ploughing of land according to its contour or slope to prevent soil erosion.

E. Increasing biodiversity will promote soil erosion as more organisms will be there which will feed on vegetation and this will cause the same effect as that of grazing cattle.

Hence, soil erosion can be reduced by Contour Ploughing.

So, the correct answer is 'Contour ploughing'.