Overview of Earth’s Atmosphere
The atmosphere is comprised of of gases, consisting mostly of nitrogen and oxygen. It also contains lesser amounts of argon, carbon dioxide, and many other trace gases.
![](http://www.ei.lehigh.edu/learners/cc/atmosphere/layers.jpg)
Each layer has distinct qualities in terms of temperature.
From bottom to top, the layers are:
- The troposphere
- The stratosphere
- The mesosphere
- The thermosphere
- The exosphere