which disease is caused due to air pollution , asthma, leg pain, fever, head ache, what is smog ?, fog, smoke, both a and b, its something else, which air do we breathe?, nitrogen, oxygen, carbon dioxide , both b and c, what causes air pollution?, closing the door , drinking water, putting air conditioner, painting a picture, how can we prevent pollution ?, use garden equipment, not use crackers , both a and b, none of these, when should we stop polluting?, today, after 10 years, later, never.

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