Name at least 4 other gases in the atmosphere besides oxygen and nitrogen

78.08% nitrogen

20.95% oxygen

an average of 0.247% water vapour (very variable)

& approximately 1% of other gases

These other gases are the noble gases consisting of : -

Argon (0.93%)

Neon (less than 0.01%)

Helium (less than 0.01%)

Krypton (less than 0.01%)

Xenon (less than 0.01%)

Radon (less than 0.01%)

Regarding non-Nobel gases, there is also Carbon dioxide at 0.038%, and tiny traces of Hydrogen.

There are minute quantities of many other gases, such as methyl iodide, produced by bio - and geo-chemical reactions and used in bio-chemical reactions in living organisms, and whose importance to all life even in concentrations of less than one part per million million is only just beginning to be realised.