| A | B |
|---|
| Layer of the atmosphere closest to the Earth? | troposphere |
| What do CFC's destroy? | ozone |
| What happens to evaporated water. | clouds |
| Where air is heated more than any place on Earth. | equator |
| Transfer of energy by electromagnetic waves. | radiation |
| Transfer of heat by the flow of heated material. | convection |
| Where electrically charged particles are found. | ionosphere |
| Where air is warmed by heat from the Earth's surface. | troposphere |
| What merges with outer space. | exosphere |
| Too much exposure to what can cause skin cancer. | UV radiation |
| The only substance that exists as a solid, liquid and a gas in Earth's atmosphere. | water |
| Temperature in the thermosphere. | warm |
| This prevents radiation from reacing Earth's surface. | atmosphere |
| When water droplets collide and form larger droplets, we can get this. | precipitation |
| All of the water on Earth forms this. | hydrosphere |
| Pollutants that cause destruction of the ozone layer. | chlorofluorocarbons (CFC's) |
| Air molecules close to Earth's surface are close together causing higher: | air pressure |
| Where there is a large hole in the ozone layer. | Antarctica |
| The middle layer of the atmosphere. | mesosphere |
| A long time ago Earth's atmosphere had very little oxygen and mostly these 2 gases. | nitrogen / carbon dioxide |
