Across
- 3. condition of atmosphere at a given time and place
- 5. effect that occurs when air is pressed against a mountain
- 6. process by which water changes from a liquid to a gas
- 9. the measure of heat
- 11. forest that stays green all year long
- 13. occurs when two air masses of widely different temperatures or moisture levels meet
- 14. amount of water vapor in the air
- 16. twisting spirals that affect a small area
- 17. weather conditions over a long period of time
- 18. wind system leading to alternating wet/dry seasons
- 19. effect where Earth's atmosphere traps heat
- 21. community of plants and animals in the area
Down
- 1. centers of low pressure
- 2. permanently frozen soil
- 4. process of water changing from gas to liquid droplets
- 7. another word for "dry"
- 8. most powerful and destructive cyclones
- 9. term for a hurricane in the Western Pacific Ocean
- 10. winds that blow from same direction most of the time
- 12. area with no prevailing winds
- 15. forest that loses its leaves during the year
- 20. a desert is normally located in a ____________ shadow