Chemical compound | Mars | Earth |
Carbon Dioxide (CO2) | 95.32 | 0.04 |
Nitrogen (N2) | 2.70 | 78.08 |
Argon (Ar) | 1.60 | 0.93 |
Oxygen (O2) | 0.13 | 20.95 |
Others | 0.25 | <20 ppm |