Explain the difference between pure air and polluted air.
ScienceClass 8ICSEAnswered 28 Mar 2026
Answer
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Pure air is a mixture of several gases that are invisible and odourless. It consists about 78% nitrogen, 21% is oxygen and less than 1% of Carbon dioxide and other gases like argon, methane and ozone and a varying amount of water vapours whereas polluted air contains dust, smoke, and other harmful chemicals.
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