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 Birthrate | The Number of live births per total population,often expressed per thousand population |
| fertility rate | The average number of children a woman of childbearing years would have in your lifetime,if she had children at the current rate of her country |
| mortality rate | the number of deaths per thousand |
| infant | the number of deaths among infants under age one as measured per thousand live births |
| rate of natural increase | also called population growth rate-the rate at which population is growing,found by subtracting the mortality rate from the birthrate |
| population pyramid | a graphic device that shows gender and age distribution of a population |
| push-pull factors | a factor that draws or attracts people to another location |
| population density | the average number of people who live in a measurable area,reached by dividing the number in habitants in an area by the amount of land the occupy |
| carrying capacity | the number of orginisms a piece of land can support without neggative support |