06-12-2008, 12:58 PM
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#9 (permalink)
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Master EcoModder
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Hello:
http://en.wikipedia.org/wiki/Earth%27s_atmosphere
Quote:
It contains roughly (by molar content/volume) 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.038% carbon dioxide, trace amounts of other gases, and a variable amount (average around 1%) of water vapor.
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