Question

define air ill mark as brainlilest

Answer 1

Answer:

the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.

Explanation:

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Answer 2

Answer:

Air is a mixture of many gases and dust particles. It is the clear gas in which living things live and breathe. ... Air is a mixture of about 78% of nitrogen, 21% of oxygen, 0.9% of argon, 0.04% of carbon dioxide, and very small amounts of other gases

Explanation:

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