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AP human geo pop/mig

population and migration

TermDefinition
life expectancy average number of years an infant can expect to live
crude birth rate (CBR) the toltal number of live births in a year for every 1,000 people alive in the society
infant mortality rates the number of infant deaths (under age 1) per 1,000 live births
zero population growth (ZPG) a decline of the total fertility rate to the point where the natural increase rate equals zero
total fertility rate (TFR) the average number of children a woman will have throughout her childbearing years.
sex/gender ratio the number of males per 100 females in the population
dependancy ratio the number of people under age 15 and over 64 compared to the number of people active in the labor force
demographic transition the process of change in a society's population from a condition of high CBR and high CDR, low rate of natural increase, and higher total population
pandemic disease that occurs over affects a very high proportion of the population
physiological density the number of people per unit area of arable land, which is land suitable for agriculture.
doubling time the number of years needed to double a population assuming a constant rate of natural increase.
population pyramid
Created by: bmwarmund
Popular AP Human Geography sets

 

 



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