Across
- 4. not thrown away but made into another
- 5. heat used from earth to heat water
- 7. Mechanical energy in the sky
- 10. resources that cant be regained easy
- 12. fuels Organisms but dead for eons
- 13. Sun energy into electricity
- 14. Chernobyl
Down
- 1. resources that can be regained easy
- 2. storing things in case they deplete
- 3. harmful bad things
- 6. spiny paddles in water
- 8. to go down in use or in general
- 9. to use again
- 11. Plants used for fuel