physical geography vocab

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Across
  1. 4. moving to a new country and staying there
  2. 7. something that attracts people to a place
  3. 9. the number of people per unit of area
  4. 12. suburbs
  5. 13. country side
  6. 14. the uncontrolled expansion of urban areas
Down
  1. 1. people that cross the atlantic
  2. 2. a city or town
  3. 3. moving abroad
  4. 5. established a free-trade zone in North America
  5. 6. something that makes people want to leave a place
  6. 8. process of making an area more urban.
  7. 10. public and private physical structures such as roads, railways, bridges, airports,and public transit systems
  8. 11. the growing interdependence of the world's economies, cultures, and populations