Across
- 2. not infinite or are using more than they are being produced
- 3. energy from water
- 7. making new things out of old ones
- 9. suns energy
- 11. infinite or can be easily remade
- 13. energy from the heat of the earth
- 14. saving something so you don't use it up
Down
- 1. making harmful toxins for the earth
- 4. make less of
- 5. splitting atoms
- 6. using something again
- 8. made by the earth over millions of years
- 10. energy from air pushing a turbine
- 12. energy from living organisms