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Dry air contains roughly (by volume) 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.038% carbon dioxide, and trace amounts of other gases.
Note however that air also contains a variable amount of water vapor, on average around 1%.
Wiki User
∙ 14y ago
Wiki User
∙ 15y agoAir is a compound gas, which when dry has the following constituents:
Nitrogen, N2, 78.084%
Oxygen, O2, 20.947%
Argon, Ar, 0.934%
Carbon Dioxide, CO2, 0.0350%
Neon, Ne, 0.001818%
Helium, He, 0.000524%
Methane, CH4, 0.00017%
Krypton, Kr, 0.000114%
Hydrogen, H2, 0.000053%
Nitrous Oxide, N2O, 0.000031%
Xenon, Xe, 0.0000087%
Ozone, O3, trace
Carbon Monoxide, CO, trace
Sulphur Dioxide, SO2, trace
Nitrogen Dioxide, NO2, trace
Ammonia, NH3, trace
Wiki User
∙ 14y agoAir is made of atoms, hydrogen and oxygen.
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Air is mostly made up of nitrogen. Oxygen is the second largest amount in air. Carbon dioxide is the third largest amount in air. Hope this helps!
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Air is made up of mostly which gas?
Which gas is air mostly made up from
