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