Question

What happens when rain falls on soil without vegetational cover ?

• A. Rain water percolates in soil efficiently
• B. Rain water causes loss of surface soil
• C. Rain water leads to fertility of the soil
• D. Rain water does not cause any change in soil

Answer 1

The correct option is B

Rain water causes loss of surface soil

The correct option is B:

1. When the soil is without vegetation cover, the rainwater carries away the soil and causes its loss.
2. Vegetational cover on the ground helps to hold the soil in place.
3. It also helps in percolating water into the deeper layers of the soil.
4. The absence of vegetational cover may lead to soil erosion.