Answer:
Hydrogen
Carbon Dioxide
Water Vapor (assuming the air is not dry)
Oxygen
Nitrogen
Explanation:
We have to make the distinction between dry air and humid-air
Oxygen, Carbon Dioxide, Water Vapor, Nitrogen, Hydrogen
Hydrogen 0.000055%
Carbon Dioxide 0.413%
Oxygen 20.946%
Nitrogen 78.084%
The case of water vapor is quite variable and can increase up to 3% in some cases (lowering the participation of the other gases) but, it is near zero when the air is dry. Thus it their participation will be above Carbon Dioxide
