| Flap 1 |
Flap 2 |
| population | number of people |
| pop. distribution | how people are spread out |
| demography | study of population dist. & changes |
| pop. density | avg. # of people per sq. mile |
| birthrate | # of births each year per 1,000 |
| death rate | # of deaths each year per 1,000 |