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Biology 14 Online
OpenStudy (anonymous):

Because Earth's atmosphere has been altered by the presence of life, its atmosphere contains more ____ than any other planet. (Points : 3) nitrogen oxygen hydrogen

OpenStudy (anonymous):

By volume, dry air contains 78.09% nitrogen, 20.95% oxygen,[1] 0.93% argon, 0.039%

OpenStudy (anonymous):

by double checking u knw that the answer is actually nitrogen

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