english work

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Across
  1. 2. Consent given by a person with the authority to do so.
  2. 4. search or chase animals
  3. 5. set of qualities for which a person or thing is appreciated or valuable
  4. 8. Protect action
  5. 14. Action to conserve or conserve
  6. 16. Stay alive after the death of a person or an accident.
  7. 18. Atmosphere or air that is breathed or surrounds living beings.
  8. 19. Stop owning a certain thing because of some circumstance.
Down
  1. 1. Action to develop or develop.
  2. 3. group of rocks and earth in a very high place
  3. 6. Part of biology that studies the relationships of living beings with each other and with the environment in which they live.
  4. 7. Stop being alive
  5. 8. liquid, gaseous or solid toxic substance
  6. 9. Activity that consists of trading products
  7. 10. It's not authorized
  8. 11. Cultivation of the land
  9. 12. Destroy action.
  10. 13. That he is little given to being cheerful.
  11. 15. Recreational activity that consists of traveling
  12. 17. Action or activity of working.