Across
- 4. solid fossil fuel
- 6. unlimited resource
- 9. _______ panels
- 11. ________ gases
- 12. most common renewable
- 13. volcanic energy
- 14. common carbon emitter
- 15. ________ fuels
Down
- 1. a.k.a oil
- 2. clean energy product
- 3. uranium power
- 5. a.k.a. natural gas
- 7. wood is most common
- 8. energy from dams
- 10. _______ dioxide
- 12. global ________