Across
- 2. bin; container
- 3. tree
- 9. plastic
- 10. fish
- 11. bird
- 12. nature
- 14. environment
- 17. recycling
- 18. water
- 19. trash
- 21. insect
- 22. plant
Down
- 1. animal
- 4. to recycle
- 5. glass
- 6. paper
- 7. flower
- 8. leaf
- 13. air
- 15. to throw away
- 16. electricity
- 20. metal
