Across
- 2. water that flows across the surface of the earth
- 3. a very small drop of water
- 7. the force exerted by air on any surface it’s in contact with
- 8. evaporation of water through the leaves of plants
- 10. relating to the natural world and the impact of human activity on its condition
- 12. the process of a liquid changing into a gas (heat)
Down
- 1. tool used to measure atmospheric pressure (Mercury & Aneroid)
- 4. the introduction of harmful materials into the environment
- 5. water released from clouds in the form of rain, freezing rain, sleet, snow, or hail.
- 6. the process of a gas changing into a liquid (cools)
- 9. heat trapping gases: water vapor, carbon dioxide, and methane
- 11. A federal law that focuses on improving air quality across the U.S.