Across
- 3. to support
- 7. to donate
- 11. its sunny
- 13. black ice
- 14. recycling
- 15. Earth
- 17. a downpour
- 20. jungle
- 21. waterfall
- 25. Nature
- 26. to contribute
- 27. to help
- 29. to protect
Down
- 1. salt water
- 2. water cycle
- 4. avalanche
- 5. mountain range
- 6. lake
- 8. to volunteer
- 9. to develope
- 10. carbon footprint
- 12. to preserve
- 16. island
- 18. agriculture
- 19. ecosystem
- 22. to reduce
- 23. natural gas
- 24. coastal areas
- 26. to change
- 28. clouds