Across
- 4. 97% of Earth's water
- 6. mining on the ocean floor
- 10. permanent waste disposal facility
- 12. unwanted noise
- 13. 3% of Earth's water
- 14. splitting of two atoms
- 15. liquid that passes through waste in a landfill
Down
- 1. renewable energy from the sun
- 2. crushed ore that is melted to separate impurities from molten metal
- 3. energy used from the movement of water
- 5. minerals with no commercial value
- 7. when water vapor goes into the atmosphere
- 8. energy used from harnessing the wind
- 9. if it can be broken down by biological processes
- 11. air pollution from cars