Across
- 1. to use
- 5. person walking in the street
- 7. energetic
- 11. to reduce
- 12. renewable
- 14. waste products
- 15. heating system
- 16. to use again in a different way
Down
- 2. efficiency
- 3. sustainability
- 4. to recycle
- 6. tosave
- 8. natural resources
- 9. toilet
- 10. use soap to scrub
- 13. green zone