Across
- 3. reusing something
- 8. cutting down trees
- 12. such as bushfire, earthquake and tsunami
- 13. ice
- 14. solid, nonrenewable source of energy
- 15. the power to do something
- 16. something you can make more of
- 19. using stuff
- 20. energy from breaking atoms
Down
- 1. rock holding valuable materials
- 2. relating to the sun
- 4. natural change in climate sped up by human activity
- 5. layer between earth and space
- 6. movement of water between earth and sky
- 7. all sorts of nonrenewable energy
- 9. ability to keep going
- 10. gases that are bad for the environment
- 11. liquid, nonrenewable source of energy
- 17. a natural material that we use
- 18. adding waste to the water , land and air