| A | B |
|---|
| Total number of people living in an area | population |
| The average number of people living in a square mile | population density |
| the movement of people from one place or region to another | migration |
| scientist that studies population growth | demographer |
| the number of deaths each year per 1,000 people | death rate |
| the number of births each year per 1,000 people | birth rate |
| the way the population is spread out over an area | population distribution |
| The count of the U.S. population every ten years | census |
| people who move from one country into another country to live | immigrants |
| how long a person is expected to live on average in a country | life expectancy |
| geographical term that refers to cities | urban |
| geographical term that refers to areas out in the country | rural |
