(a) What is called
air pollution ? (b) How is air polluted ? (c) What happens when men inhale
polluted air ? (d) How can we reduce it ? (e) Who have to come forward ? (f)
How can we solve this problem ?
Air is the most
important element of human environment. Man cannot live a single moment without
air. But we do not think that it is we who pollute this most vital element.
Clean air is essential for life. Air is polluted in many ways. Smoke pollutes
air. Man
makes fires to cook
his food, to make bricks burns refuse, melts pitch for road construction and
burns wood. All these things produce heavy smoke and this smoke pollutes air.
Railway engines, power houses, mills and factories use coal and oil. Buses,
trucks and cars use petrol and diesel oil. Again all these things create smoke
and cause air pollution. The most serious air pollution occurs in big
industrial areas where there are many mills and factories. Serious air
pollution also occurs in big cities where there are many buses, trucks and cars
plying the street everyday. Sometimes men in big industrial area become so sick
by inhaling polluted air that they cannot be cured. So proper measures and
steps should be taken to prevent air pollution.
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