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5. Explain the differences between pure air and polluted air.

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Differences between Pure air and Polluted air are:

Pure Air	Polluted Air
It is free from various harmful gases and germs.	It contains various types of germs and impurities which are very harmful to people.
If inhaled, we do not get any harm to our system and stay healthy.	If inhaled, it may cause respiratory problems like asthma, etc. Not healthy for our body.
It contains 78%nitrogen, 21%oxygen and 0.03% carbon dioxide.	It contains harmful gases like sulfur dioxide, nitrogen dioxide and others.

Posted by

Divya Prakash Singh

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