| A | B |
|---|
| troposphere | layer in which we live |
| stratosphere | layer that contains the ozone layer |
| mesosphere | coldest layer below the exosphere |
| thermosphere | layer with the highest temperature |
| exosphere | layer that goes into space |
| ionosphere | layer in the thermosphere that reflects radio waves |
| ozone_layer | *** region that absorbs ultraviolet radiation |
| aurora_borealis | ***northern lights |
| aurora_australis | ***southern lights |
| shortwave | ***type of radio frequencies that bounce off the ionosphere |
| ultraviolet | radiation that produces sunburn and skin cancer |
| O3 | formula for ozone |
| greenhouse_gas | ***atmospheric gases that trap heat energy |
| Oxygen | diatomic gas that comprises 21% of our atmosphere |
| Nitrogen | diatomic gas that comprises 78% of our atmosphere |
| atmospheric_pressure | ***14.7 p.s.i. at sea level |
| decreases | When altitude increases in the troposphere, what does temperature and pressure do? |
| increases | In the thermosphere, when altitude increases what does temperature do? |
