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