the statistical study of human populations
demography
the average number of people living in an area
population density
how many people are born each year
birthrate
how many people die each year
death rate
the process of moving from one place to live in another
migration
people who leave a country to live somewhere else
emigrants
people who come to a new country to live
immigrants
what causes people to leave a location
push factors
migrating for economic reasons like a lost job or lack of opportunity or promotion
pull factors
someone without a country
refugee