Across
- 3. The change of a substance from a liquid to a gas
- 5. A narrow belt of strong winds that blow in the upper troposphere
- 6. A huge body of air that has similar temperature, humidity, and air pressure at any given height
- 7. The continuous process by which water moves from Earth's surface to the atmosphere and back
- 9. humidity The percentage of water vapor in the air compared to the maximum amount of water vapor that air can contain at a particular temperature
- 11. Any form of water that falls from clouds and reaches Earth's surface
- 14. a front where a warm air mass is caught between two colder air masses and brings cool temperatures and large amounts of rain and snow.
- 15. a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms
- 17. A boundary between two air masses
- 18. a measure of the amount of water vapor in the air
- 19. Gases such as carbon dioxide, methane, nitrous oxide, water vapor, and ozone in the atmosphere which are involved in the greenhouse effect
- 20. A gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants
Down
- 1. The average weather conditions in an area over a long period of time
- 2. The condition of Earth's atmosphere at a particular time and place
- 4. instrument used to measure wind speed
- 8. The envelope of gases surrounding the earth or another planet
- 10. A warm air mass that forms in the tropics and has low air pressure.
- 12. an instrument used to measure humidity
- 13. air mass that forms over cold regions
- 16. The change of state from a gas to a liquid