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