Question

Arrange the following in descending order of their role in soil erosion.
(i) Wind erosion

(ii) Chemical degradation

(ii) Physical degradation

(iv) Water erosion

• A. i, ii, iii, iv
• B. iv, i, ii, iii
• C. iv, iii, ii, i
• D. iv, ii, iii, i

Answer 1

The correct option is B iv, i, ii, iii

Soil erosion is the process of wearing of upper layer of soil by the natural physical forces such as water and wind or by farming activities. Water erosion and wind erosion are the two major physical forces which play an important role in soil erosion. The farming activities include chemical and physical degradation. Use of pesticides leads to soil erosion. Physical degradation such as cutting of trees leads to soil erosion.

Thus, the correct answer is 'iv, i, ii, iii.'