Across
- 3. a person forced to leave their country
- 5. countries with advanced industry and infrastructure
- 7. people entering a country
- 9. the difference between the number of immigrants and emigrants to a country
- 10. a survey used to collect demographic data
Down
- 1. countries with a lower level of industry
- 2. demographic ________: an area where no people live
- 4. the study of populations
- 6. people leaving a country
- 8. population ______, a measurement of the number of people in an area