Answer the following questions to write a paragraph on 'Air Pollution'.
(a) What is air pollution?
(b) How is air polluted?
(c) What are the main reasons of air pollution?
(d) What are the demerits of air pollution?
(e) How can we solve this problem?
Ans
AIR POLLUTION
Air pollution means the ways in which air is polluted. At present, air pollution is one of the major issues in our country. It is also a global problem. Air is the most important element of human environment. Man cannot live a single moment without air. But we never thínk that it is we who pollute this most vital element. Air is polluted in many ways. Mills, factories and brick fields emit huge black smoke which pollutes air seriously. Rail engines, power houses and motor car also produce huge smoke which pollutes air dangerously. Man makes fire to cook his food, burns refuse, melts pitch for road construction and burns wood.
All these things produce heavy smoke and this smoke pollutes air. The demerits of air pollution are many. It causes heart diseases and cancer. The most serious aspect of air pollution is its giving rise to the greenhouse effects. As a result of greenhouse effects, the polar ice caps are melting and the water of the sea-level is rising up: Consequently, the lower part of earth may go under water. So it is essential to take steps to lessen the emission of smoke that causes air pollution. In order to solve this problem, civic awareness should be created about the adverse éffects of air pollution. The indiscriminate cutting down of trees must be stopped and every year more trees should he planted across the country. In short, we should take all necessary steps to prevent air pollution.