Which biological factor is responsible for poor vegetation in deserts
Grazing by animals and goats
Low rainfall
Poor fertility of soil
Native mankind
In recent years, there has been an increasing incidence of floods in the plains of northern India because
The $ pH$ of a fertile soil is usually around
In the environment, ozone is known for its
Which of the following changes would be likely to make terrestrial life on this planet impossible
Who defined ecology as the study of form, function and factor