question_answer 51)

  What happens when rain falls on soil without vegetation 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:

  (b) Vegetation cover on the ground helps to the hold the soil in place. It also helps in percolating water into the deeper layers of the soil. Absence of vegetational cover may lead to soil erosion.