Regions of North America

4. A material (minerals, forests, etc) that occurs in nature and
6. the usual pattern of weather conditions in a region, such as temperature, precipitation, and wind
9. a natural resource that is found in limited amounts
11. use the way people use and change the natural environment
12. economic value.
14. America
16. A stream or river that flows into a larger river or other body
17. naturally with the passage of time
18. one of the seven large landmasses of the Earth: Africa,
20. The position of a place in relation to another place
23. The height of land above sea level

1. the totality of the natural world, often excluding humans
2. farming)
3. Any natural resource (as wood or solar energy) that can be
5. Asia, Australia, Europe, North America, and
7. lacking moisture, especially having insufficient rainfall to support trees or woody plants
8. a large area of a sea or ocean partly enclosed by land
10. natural processes that wear away material from Earth's
12. points of the Rocky Mountains. Rivers flow west or
13. Divide An imaginary line that runs north and south along the
15. sharing an edge or boundary; touching
19. system a river and its tributaries
21. from this line.
22. water