How many gases are present in the atmosphere?
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78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.
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there are three major gases in atmosphere...
nitrogen ( 78% )
oxygen ( 21%)
carbon dioxide and ( 1% )
other gases
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