The World's People

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Across
  1. 2. Area where many people live.
  2. 3. To leave one's home to live in another place.
  3. 4. Area where few people live.
  4. 7. The average number of people living in a square mile or square kilometer.
  5. 9. To enter and live in a new country
  6. 10. A huge city or cluster of cities.
  7. 11. Number of babies born compared to the total population.
Down
  1. 1. the number of years it takes for a population to double.
  2. 5. Process of cities growing large and spreading out.
  3. 6. One reason for rising population is falling______.
  4. 8. Where people live on Earth.