TOP 10 GAS IN EARTH ATMOSPHERE (by Volume)

01. Nitrogen (N2) - (78.084%)
02. Oxygen (O2) - (20.946%)
03. Argon (Ar) - (0.9340%)
04. Carbon dioxide (CO2) - (0.0397%)
05. Neon (Ne) - (0.001818%)
06. Helium (He) - (0.000524%)
07. Methane (CH4) - (0.000179%)
08. Krypton (Kr) - (0.000114%)
09. Hydrogen (H2) - (0.000055%)
10. Nitrous oxide (N2O) - (0.0000325%)