Air abe an important element of the environment. But it is constantly being bpollute in many ways. We make fire to cook food and cdo many works. This fire emits smoke which dcontaminate air. Vehicles pollute air to a great extent by eburn fuel. Air pollution also fhappen when coal and oil gburn. Mills and factories can be hhold responsible for this pollution. It is high time we icheck air pollution. Otherwise we jsuffer a lot.
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