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Chapter 5
Section 1
Chapter 5 | Section 1 |
---|---|
demography | statistical study of human populations |
population density | the average number of people living in an area; usually expressed as persons per square mile or square kilometer |
birthrate | the number of live births each year for every 1,000 people living in one place |
death rate | total number of deaths each year for every 1,000 people in a place |
migration | the process of moving from one place to live in another |
emigrants | people who leave a country to live somewhere else |
immigrants | people who come to a new country to live |
push factors | factors causing people to leave a location |
pull factors | factors attracting people to a new location |
refugees | people who have neen forced to leave an area |