What are the four main gases in our atmosphere?

Carbon dioxide oxygen nitrogen?
I searched it up and it says argon is the other one but we haven't learned about that yet
Would hydrogen be a main gas?

1 answer

Believe your research.

Gases in atmosphere:

Nitrogen (N2) 78.084%
Oxygen (O2) 20.946%
Argon (Ar) 0.934%
Carbon dioxide (CO2) 0.0383 %
Neon (Ne) 0.001818 %
Helium (He) 0.000524 %
Methane (CH4) 0.0001745 %
Krypton (Kr) 0.000114%
Hydrogen (H2) 0.000055 %
There is also a varying amount of water vapor, depending on the altitude and conditions where it is measured