Across
- 4. a huge city or cluster of cities within an extremely large population
- 6. cities grow larger and spread into surrounding areas
- 8. the average number of people living within a square mile
- 9. sparsely populated
- 10. the number of babies born compared to the total number of individuals in a population
- 12. to leave one's home to live in another place
Down
- 1. the geographical pattern of where people live on Earth
- 2. densely populated
- 3. the number of deaths compared to the total number of individuals in a population
- 5. to enter and live in a new country
- 7. the number of years it takes a population to double in size
- 11. people who flee a country because of violence, war, or persecution
