| Questions | Answers |
|---|---|
| The weight of gases that surround the Earth. | |
| Horizontal movement of air from an area of high pressure to an area of low pressure | |
| The amount of moisture in the air. | |
| The weight of a column of air pushing down on an area. | |
| A form of oxygen that contains 3 oxygen atoms forming a molecule. | |
| Lowest layer of Earth atmosphere, where weather occurs. | |
| Middle layer of Earth's atmosphere, where most meteoroids burn up. |