Across
- 2. comes from the sun
- 9. solar energy
- 10. Non-renewable
- 12. Materials that take time
- 13. Man-made
- 14. materials that grow back fast
- 15. renewable
Down
- 1. nature materials
- 3. a man chops down a tree
- 4. Renewable
- 5. evresnoc
- 6. Infinite energy
- 7. HOT earth
- 8. uses water
- 11. not biomass