Across
- 2. energy from steam, hot rocks in the earth
- 5. energy made from the flow of water
- 9. emissions that ruin the natural environment
- 11. resource that will run out
- 12. use something more than once
- 13. remake something
- 14. energy derived from the wind
Down
- 1. resource that will not run out
- 3. potential energy in the nucleus
- 4. energy source made from ancient materials
- 6. energy from the sun
- 7. preserving natural resources
- 8. renewable energy made from burning organic materials
- 10. lower the amount of something