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- ArnoldLv 79 years agoFavorite Answer
Air is a mixture of gasses within earth's atmosphere. It's mostly nitrogen, about 20% oxygen, then there's some other trace gasses like carbon dioxide, nitrogen dioxide, helium, hydrogen, argon, etc.
- 9 years ago
Not sure, but if you want to walk my dog tomorrow text me:
(773) 555-1234
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