Describing cities

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Across
  1. 6. Lots of factories
  2. 7. Opposite of safe
  3. 9. Opposite of west
  4. 13. Place with people from difft countries
  5. 14. Dirty air
Down
  1. 1. Opposite of loud and noisy
  2. 2. Lots of traffic
  3. 3. Lots of people
  4. 4. Opposite of rural
  5. 5. A small town
  6. 8. Opposite of boring
  7. 10. Near the sea
  8. 11. In the middle
  9. 12. Opposite of north