Across
- 2. resources our earth will replace naturally
- 5. the planting of trees to preserve resources
- 7. material that will come naturally to people for their use and value
- 9. energy used from the sun that's turned into electricity
- 10. wind that creates electricity
- 11. the cleaning away of trees
- 13. petroleum
- 14. main use is to provide fuel for products
Down
- 1. resources that cannot be replaced and will run out at some point
- 3. can be dangerous if in contact with people
- 4. electricity from water power
- 6. small doses if in contact with people
- 7. cleanest burning fossil fuel
- 8. used to power factories
- 12. nonrenewable resources that are formed from the remains of ancient plants and animals