Crucigrama del medio ambiente

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Across
  1. 3. forest
  2. 6. erosion
  3. 8. ecology
  4. 9. oil
  5. 10. flood
  6. 12. greenhouse effect
  7. 13. nature
  8. 18. recycling
  9. 20. plains
  10. 21. deforestation
  11. 22. biodiversity
  12. 23. waterfall
  13. 24. future
Down
  1. 1. earthquake
  2. 2. Earth
  3. 4. garbage dump
  4. 5. industrial waste
  5. 7. drought
  6. 11. development
  7. 14. fresh air
  8. 15. pollution
  9. 16. rain-forest/jungle
  10. 17. hill
  11. 19. sand