Across
- 5. waterfall
- 7. palm tree
- 10. industrial waste
- 12. to recycle
- 13. oil
- 17. environment
- 19. bay
- 22. sand
- 23. recycling
- 29. to clean
- 31. nature
- 33. river
- 34. cactus
- 36. cloud
- 37. tree
- 39. deforestation
- 40. volcano
- 41. to take care of
- 43. jungle
- 45. sky
Down
- 1. plain
- 2. hill
- 3. pollution
- 4. grasslands
- 6. to save
- 8. natural resources
- 9. to protect
- 11. to destroy
- 14. earth
- 15. desert
- 16. it is necessary
- 18. wave
- 20. to save
- 21. should
- 24. to have to
- 25. ecology
- 26. forest
- 27. sea
- 28. peninsula
- 30. island
- 32. valley
- 35. to preserve
- 38. mountain
- 40. grass, pasture
- 42. smog
- 44. coast