Spanish3 crossword puzzle

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Across
  1. 1. population
  2. 4. foreigner, alien
  3. 8. immigration
  4. 9. ignorance, lack of awareness
  5. 10. to reach, achieve
  6. 11. (in)security; (lack of) security
  7. 14. working day; day's journey
  8. 15. worldwide
  9. 16. Displaced
  10. 18. to link, to connect
  11. 20. visa (travel document)
  12. 21. to brake, stop
  13. 24. federation
  14. 25. development, growth, progress
  15. 27. to immigrate (enter a country)
  16. 28. to attain/to be able to
  17. 29. phenomenon
  18. 31. world population
  19. 37. I believe that...
  20. 38. continent, mainland
  21. 39. restart
  22. 41. countries of the world
  23. 42. to exchange, to trade
  24. 46. Immigrants within one's own country
  25. 48. reason
Down
  1. 2. citizenship/the citizens
  2. 3. African Studies Group
  3. 5. we will have (future tense of tener)
  4. 6. analyze, examine
  5. 7. immigrants - la persona que sale de su lugar de origen para llegar a un destino diferente
  6. 12. knowledge, understanding
  7. 13. legal
  8. 17. country, nation
  9. 19. try, attempt
  10. 22. will exist
  11. 23. to travel, journey
  12. 26. to work, have a job
  13. 30. movement, motion
  14. 32. inside, in
  15. 33. ignition, on
  16. 34. to tackle, to board
  17. 35. terrorist (male)
  18. 36. Approach, point of view, focus
  19. 40. to track down
  20. 43. la administración,management
  21. 44. flow
  22. 45. famoso,famous
  23. 46. from the south
  24. 47. to emigrate (leave a country)