A. Oxygen
B. Carbon
C. Hydrogen
D. Nitrogen
Explanation by Farah:
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By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.
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3 Comments
Very nice and informative keep it up:)))
Explanation:
By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.
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