Across
- 5. valley
- 7. to make better
- 8. pesticide
- 9. desert
- 10. luna
- 11. árboles
- 14. earth
- 17. neighborhood
- 18. to protect
- 22. hill
- 23. electricity
- 26. lake
- 27. truck
- 30. street
- 32. contaminated
- 33. oceano
- 34. pedestrian
Down
- 1. flores
- 2. danger
- 3. nature
- 4. periódico
- 5. glass
- 6. neighbors
- 9. to damage
- 12. to reduce
- 13. mar
- 15. extinction
- 16. mono
- 19. river
- 20. mundo
- 21. revista
- 24. forest
- 25. cardboard
- 28. oso
- 29. zoológico
- 31. to fight