Gases in the atmosphere

Guess the 14 most common compounds in Earth's atmosphere, excluding water vapor

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*from April 2022

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Last updated: July 3, 2023

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First submitted	July 3, 2023
Times taken	36
Average score	57.1%
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Percent	Gas
78.084	Nitrogen
20.946	Oxygen
0.934	Argon
0.0417*	Carbon dioxide
0.00182	Neon
0.00052	Helium
0.00019	Methane

Percent	Gas
0.00011	Krypton
0.00006	Hydrogen
0.00005	Nitrous oxide
0.000009	Xenon
0.000002	Nitrogen dioxide
0.0000005	Ozone
0.0000001	Iodine

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