Population Density

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Across
  1. 3. Too many people in one place
  2. 4. Many people live in this in a place with high population density
  3. 6. For there to be very little space
  4. 7. High apartment buildings
  5. 11. Boats which people live on
  6. 12. To dirty a place
  7. 13. To bring water into a place
  8. 16. Surrounded by land
  9. 17. River in India
Down
  1. 1. People who live on streets
  2. 2. The making of deserts
  3. 5. Slum in India
  4. 8. Richest part of Hong Kong
  5. 9. Poorer part of Hong Kong
  6. 10. Largest hot desert, in Africa
  7. 14. To be alone
  8. 15. Poor place in India with high population density