What is the Atmosphere Like on Mars?

The atmosphere on Mars would not sustain human life as it is too thin. It does contain more carbon dioxide than the earth’s atmosphere does. It’s make up is 95% carbon dioxide, 2.7% nitrogen, 1.6% Argon, 0.13% oxygen, 0.07% carbon monoxide, 0.03% water vapor, 0.013% Nitrix oxide and even smaller amounts of neon, krypton, formaldehyde, xenon, and ozone.