Air - Mostly Nitrogen

Most recent answer: 10/22/2007

Q:
What gas makes up the greatest percentage of the air we breathe?
- Sam
Rocaway, N.Y.
A:
Sam -

Air is mostly made up of Nitrogen gas (about 75%). The other biggie is Oxygen gas (about 20%). The last little bit is a mixture of argon, water, carbon dioxide, ozone, and others. For more information on why this is, check out the answer to the question

-Tamara

(published on 10/22/2007)