Choose the correct statement. - Vidyadip

MCQ

Choose the correct statement.

✓
Soil erosion can be prevented by raising forests.
B
Oxygen is returned to atmosphere in only one major process, i.e. respiration.
C
The process of nitrogen-fixing is done by bacteria in the presence of oxygen.
D
The heating of air causes the water vapours in the air to condense in the form of tiny droplets.

✓

Answer

Correct option: A.

Soil erosion can be prevented by raising forests.

Forests are rich in vegetation. Herbs, shrubs and trees in the forests hold the top most layer firmly by their roots. This does not allow natural forces like wind and water to carry away the top most fertile layer of the soil easily. Hence, forests prevent soil erosion.

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