The correct option is C Acid rain is the result of increased use of non-conventional sources of energy.
Acid rain or acid deposition is a term that means any form of precipitation in the form of acid components. The main chemicals in air pollution that creates acid rain are sulfur dioxide and nitrogen oxide. Acid rains forms are high in clouds where the sulfur dioxide and nitrogen oxides react with water, oxygen, and oxidants. Acid rain is the result of excessive use of conventional sources of energy. The conventional sources pollute the environment on a large scale by releasing greenhouse gases. The acid rain takes away the fertility from the soil, the rain also strips nutrients from the tree's foliage.