Mr William’s word cross

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Across
  1. 2. snowballing
  2. 4. Increase number of people
  3. 6. Lots of one story buildings
  4. 8. Lack of supplies
  5. 10. opposite of urbanisation
  6. 12. Environmental impacts
  7. 13. sick
Down
  1. 1. Lack of employment
  2. 3. communities on outskirts of city
  3. 5. AQI
  4. 7. finding permanent housing
  5. 9. lots of buildings
  6. 10. Lots of office
  7. 11. extended city area