Across
- 1. to move away
- 3. raw materials
- 4. to be missing
- 5. to reuse
- 6. self-construction
- 8. natural environmental
- 11. recycle
- 13. to reduce
- 14. certification
- 15. both
- 16. power outage
- 17. ecological products
- 19. to rinse
Down
- 2. natural resources
- 7. to save
- 9. to turn off
- 10. to work
- 12. consumption
- 18. to light