Question

Please answer this question​

Answer 1

Answer:

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Answer 2

Answer:

a) in picture a a) air is not pure because burning of gases produce carbon dioxide and does so different types so the air is not clean.

b) in picture b) the air is not cleaned because waste of the factory are got mixing up with the air.

c) as in picture see all the ingredients and natural and there very less people exchange of gases is very less so it's pure air.

Explanation:

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