Across
- 2. part of a river system that flows across the northwest territories
- 5. a tropical storm that occurs in the western pacific
- 6. tropical grasslands covers most of the continent
- 8. the effect of this distance on climate
- 12. a current of warm from the tropics, flows near Europe's west coast
- 15. steep U-shaped valleys that connect to the sea
- 16. the largest desert in the world
- 18. an area in the desert where vegetation is found
- 20. winds evaporate the moisture in the soil
- 21. low mountains that may also contain mesas and high plateaus
- 22. the empty quarter
Down
- 1. huron,ontario,michigan, eerie and superior
- 3. mountains extend 1,600 miles from Newfoundland in Canada to Alabama
- 4. rocky mainly flat area covers nearly 2 million miles
- 6. a hot steady south wind
- 7. located in northern china ad southeast Mongolia
- 9. a largely treeless area that continues the ascent to about 4,000 feet
- 10. south of the tundra lies the larges forest on earth
- 11. located in western china
- 13. extend 3,000 from Alaska south to New Mexico
- 14. underground stores of water
- 17. a cold dry wind from the north
- 19. the uppermost layer of branches, about 150 feet above the ground