GL 107 Earth Systems Science

K. Hannula

Discussion questions for 11/12/07

1.  What are the two most abundant chemical components of Earth's atmosphere?

2.  For each of the four layers of Earth's atmosphere, describe a) the name of the layer, b) the height of the layer above Earth's surface, and c) the change in temperature with altitude.

3.  In which layer of Earth's atmosphere does most weather occur?

4.  Which layer of Earth's atmosphere contains the ozone layer?

5.  What causes the "ozone hole"?

6.  Why do seasons occur?