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environment

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Across
  1. 3. tower Geological formation
  2. 5. peruvian flower
  3. 6. Structure for the ex situ reproduction and rearing of animals
  4. 8. resource
  5. 10. alteration or degradation of the environment
  6. 11. Region, surroundings and circumstances
  7. 12. peruvian river
  8. 14. peruvian river
  9. 15. peruvian river
  10. 16. waste materials are reused
  11. 17. animal peruano
  12. 19. National Reserve
  13. 20. technology applied to living organisms
Down
  1. 1. Set of plants
  2. 2. Branch of Ecology that studies relationships
  3. 4. set of species in a given area
  4. 7. variability of living organisms
  5. 9. Action and effect of maintaining an ecosystem in good condition
  6. 13. National Reserve
  7. 18. National Park