Across
- 3. also known as greenhouse gases
- 10. Zero degrees latitude
- 11. the hottest layer of the atmosphere
- 12. clouds associated with rain and "overcast" conditions
- 13. coldest layer of the atmosphere
- 14. Imaginary map lines drawn parallel to the equator
- 15. naturally occurring gas that causes global warming.
- 19. thin clouds associated with dry weather
- 20. absorbs harmful UV rays.
Down
- 1. Daily changes in atmospheric conditions
- 2. thick fluffy clouds that could be associated to thunder storms
- 3. Layer of the atmosphere closest to the ground
- 4. Average weather of a region for a time period
- 5. instrument that measures temperature
- 6. instrument that measures the moisture in the air
- 7. Contains the ozone layer
- 8. Imaginary map lines drawn perpendicular to the equator
- 9. the Study of weather
- 16. Collection of gases held around Earth by gravity
- 17. instrument that measures air pressure
- 18. chlorofluorocarbons