La riqueza natural

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Across
  1. 7. to develop
  2. 9. to educate
  3. 10. to pick up or gather
  4. 12. plastic
  5. 13. population
  6. 14. should
  7. 16. It's our turn
  8. 17. Ant. es inútil
  9. 19. to respect
  10. 20. jungle
Down
  1. 1. to recycle
  2. 2. trash
  3. 3. Sin. echar
  4. 4. humans
  5. 5. environment
  6. 6. Ej. Saturno,Venus
  7. 8. cuando no llueve
  8. 11. It's dangerous
  9. 15. tropical forest
  10. 18. diverse, different