| A | B |
|---|
| Atmosphere | thin layer of gases |
| Troposphere | extends from the earth's surface about 10km from the surface and contains nearly 90% of the atmosphere's gases |
| Stratosphere | above the troposphere and extends from 10 km to 45km above the earth (thin air) |
| Weather | what is happening in the atmosphere at a particular time and place |
| Climate | average weather in an area over a long period of time |
| Greenhouse Effect | when heat rises, air warms when heat is trapped by gases in the troposphere |
| Greenhouse Gases | that which traps and radiates heat |
| Global Warming | prediction that the earth's temperature will rise due to increased greenhouse gases in the atmosphere |
| CFC's Chlorofluorocarbons | human made chemicals that destroy the ozone shield |
| Ozone | form of oxygen with molecules made of three oxygen atoms |
