Across
- 3. weather patterns that a area typically experiences
- 7. a grassland with trees
- 8. less than 10% rainfall per year
- 9. marks the beginning of summer in the northern hemisphere
- 11. periodic change in the pattern of ocean currents and water temperature in the pacific region
- 12. flat highland whose sides drop down suddenly
- 13. CO2 levels increasing in the atmosphere causing temperature increase
- 16. geographic regions that support different types of life
- 17. winds bring moist air and rain
- 19. develop in tropical regions near the equator where there is ample rainfall
Down
- 1. a trip around the sun
- 2. near the polar regions and is too cold to support tree life
- 4. the measure of how hot or cold a place is
- 5. water moved between atmosphere, oceans and land surfaces
- 6. low areas between ranges of mountains, hills or uplands
- 10. carved from the landscape by a river
- 11. equal night
- 13. not enough rainfall to support large trees
- 14. condition of the atmosphere in one place for a long period of time
- 15. formed by the collision of two plates
- 18. house effect traps the suns warmth for growing plants