Across
- 4. bad for the environment
- 7. takes time to be replaced
- 10. can be replaced
- 12. not made from nature
- 14. black and brown rock made from swaps
- 15. what it releases
Down
- 1. made from nature
- 2. air
- 3. corn or sugar
- 5. can be used to transport people
- 6. liquid from underground
- 8. means earth heat
- 9. rock sticks
- 11. moving liquid
- 13. Powerhouse things