Key Terms

3. resources that cannot be replaced after use.
5. all the interactions between climate, the solid earth, water, and living things.
10. tasteless colorless natural liquid resource
13. movement of air
15. is a resource that is available in limited quantity and can be completely used.
17. all the water on earth
18. things found in nature, such as forests, mineral deposits, soil, and fresh water, that have economic value.
19. average weather conditions in a region over a period of years
20. outer layer of Earth's surface that supports life

1. movement of water from the earth’s surface to the atmosphere and back to the surface
2. a resource that will not run out in the foreseeable future.
4. the control of plants and animals by humans
6. fuels formed from the remains of dead animal and plant material deposited in a previous geologic time.
7. all the plants and animals that live in the wild
8. natural inorganic substances in or on Earth
9. gaseous layer that encompasses Earth
11. resources replaced naturally
12. combination of rock and soil that makes up Earth's crust
14. all the communities of living things on Earth
16. mixture of gases that make up the atmosphere