* Nitrogen (N2): 78.08%
* Oxygen (O2): 20.95%
* Argon (Ar): 0.93%
* Carbon Dioxide (CO2): 0.04%
While these four gases make up the vast majority of air, trace amounts of other gases are also present, including:
* Neon (Ne)
* Helium (He)
* Methane (CH4)
* Krypton (Kr)
* Hydrogen (H2)
* Ozone (O3)
* Xenon (Xe)
* Water Vapor (H2O)
The exact composition of air can vary slightly depending on location, altitude, and other factors.
