Positive pollution of soil is due to:

Options

A. Excessive use of fertilizers
B. Addition of wastes on soil
C. Reduction in soil productivity
D. All of these

Answer

C

Explanation

Addition of pesticides, herbicides, inorganic fertilizers, industrial wastes, radioactive dust, discarded materials, air pollutants which are washed down from atmosphere through rain into the soil affect the productivity of soil which is called positive pollution.