Across
- 3. comes from the forest
- 5. nonrenewable
- 7. made by humans
- 9. made by the earth
- 10. won't run out fast
- 13. gas that comes from earth
- 14. heat from earth
Down
- 1. forms over millions of years
- 2. used for salads
- 4. used to fuel cars
- 6. renewable
- 8. in limited supply
- 11. any living thing
- 12. comes from water
- 15. black liquid from earth