punnyfriends6 punnyfriends6

07-03-2019
Chemistry

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which two chemical elements make up earths atmosphere

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acidxfairy acidxfairy

07-03-2019

Earth's atmosphere is 78% nitrogen, 21% oxygen, 0.9% argon, and 0.03% carbon dioxide with very small percentages of other elements. Our atmosphere also contains water vapor.

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