Across
- 1. Damaging greenhouse gases build up here
- 4. released into the air when burning fossil fuels
- 7. Energy from plants and animals
- 8. also called crude oil
- 9. Examples are coal, crude oil, and natural gas
- 11. Resources that can't be replaced
- 12. odorless, colorless gas
- 15. A resource that can be replaced
Down
- 2. Energy created from moving water
- 3. global disaster caused by use of fossil fuels
- 5. Machines that produce wind energy
- 6. Heat energy from deep in the earth
- 10. Energy that is harnessed from the sun
- 13. energy that comes from splitting Uranium atoms
- 14. solid sedimentary rock