On Earth, the air you breathe is 78% nitrogen, but on Mars, the air is less than two percent nitrogen. What chemical makes up 96% of the air you'd breathe on Mars?

The air on Mars is largely carbon dioxide, the same chemical you exhale after a nice breath of Earth air. Martian air also has under two percent each of Argon and Nitrogen, and less than one percent of other chemicals.

Asked by Tori Highley · Last updated 5 years ago · 2.1K views · SOURCE