Across
- 4. to waste
- 7. contaminant
- 8. extinct
- 9. environmental
- 10. to turn off
- 11. to recycle
- 14. to reduce
- 15. to arise
- 16. to generate
Down
- 1. dangerous
- 2. consumption
- 3. habitable
- 5. to donate
- 6. worldly
- 7. to conserve
- 12. to contribute
- 13. rechargeable