Across
- 5. forest
- 6. its hot
- 9. nature
- 11. pollution
- 13. clouds
- 16. to stop
- 17. global warming
- 18. river
- 20. environment
- 22. snow
- 23. storm
- 27. rain
- 28. ecosystem
- 30. earthquake
Down
- 1. mountain
- 2. waterfall
- 3. erosion
- 4. ice
- 7. its sunny
- 8. its cold
- 10. the earth
- 12. island
- 14. jungle
- 15. drought
- 19. desert
- 21. fog
- 24. recycling
- 25. the world
- 26. sea
- 29. mountain range