Final Crossword :D

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Across
  1. 3. its the consecuence of all the enviromental issues
  2. 4. earth science that studies the changes in the planet
  3. 10. consecuence of the raise of the levels of sea
  4. 12. earth science that studies changes in the weather
  5. 14. earth sphere form mainly by water
  6. 15. earth sphere that is form mainly by vapor
  7. 16. earth science that studies mainly water
  8. 17. earth science that studies ancient resources
  9. 19. earth science that studies natural enviroments
Down
  1. 1. its caused by cutting too many trees
  2. 2. it happens when a green area becomes a desert
  3. 5. earth science that studies oceans
  4. 6. earth science that studies land and everything on it
  5. 7. its the main consequence of the global warming
  6. 8. earth sphere mainly form by land
  7. 9. its caused by factories and CO2
  8. 11. earth sphere form mainly by living creatures
  9. 13. science that studies stars and bodies in the space
  10. 18. its caused by chemicals on the air