Across
- 3. how many people are born
- 6. how long someone is expected to live
- 8. how many people live in a place
- 10. bring in from another country
- 11. moving a good from place to place
- 12. balancing what you export and import
- 17. a model used to explain the history of population
- 19. to make it all yourself
- 20. buying and selling goods
Down
- 1. send to another country
- 2. cities and towns
- 4. how many people live on earth
- 5. a graph that has lines
- 7. moving around
- 9. 1,2,4,8,16,32
- 13. how it changes
- 14. how fast it changes
- 15. relying on each other
- 16. how many people die
- 18. someone who flees a country