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What are the gases that make up our atmosphere on earth?

April 26, 2017atmosphere earth gases Geology Mathematics sciences

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What are the gases that make up our atmosphere on earth?

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Just over 70% of the gas is Nitrogen, ~21% Oxygen, ~0.9% Argon, and ~0.04% Carbon dioxide, also about 1% if water vapor. Plus if there is an active volcanoe near the area, there could be amounts of Sulfer dioxide in the air. Plus about 0.002% other gases.