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Ap Hum Geo Ch2

population density A measurement of the number of people per given unit of land.
arithmetic population density The population of a country or region expressed as an average per unit area. The figure is derived by dividing the population of the areal unit by the number of square kilometers or miles that make up the unit.
physiological population density The number of people per unit area of arable land.
population distribution Description of locations on the Earth’s surface where populations live.
dot map Maps where one dot represents a certain number of a phenomenon, such as a population.
megalopolis Term used to designate large coalescing supercities that are forming in diverse parts of the world; formerly used specifically with an uppercase “M” to refer to the Boston-Washington multimetropolitan corridor on the northeastern seaboard of the United St
census A periodic and official count of a country’s population.
doubling time The time required for a population to double in size.
population explosion The rapid growth of the world’s human population during the past century, attended by ever-shorter doubling times and accelerating rates of increase.
crude birth rate (CBR) The number of live births yearly per thousand people in a population.
crude death rate (CDR) The number of deaths yearly per thousand people in a population.
demographic transition Multistage model, based on Western Europe’s experience of changes in population growth exhibited by countries undergoing industrialization. High birth rates and death rates are followed by plunging death rates, producing a huge net population gain; this i
stationary population level The level at which a national population ceases to grow.
population composition Structure of a population in terms of age, sex and other properties such as marital status and education.
population pyramids Visual representations of the age and sex composition of a population whereby the percentage of each age group (generally five-year increments) is represented by a horizontal bar the length of which represents its relationship to the total population. Th
infant mortality rate (IMR) A figure that describes the number of babies that die within the first year of their lives in a given population.
newborn mortality rate The number of infants who die within the first month of life per 1,000 live births.
child mortality rate A figure that describes the number of children that die between the first and fifth years of their lives in a given population.
life expectancy A figure indicating how long , on average, a person may be expected to live. Normally expressed in the context of a particular state.
infectious diseases Diseases that are spread by bacteria, viruses, or parasites. Infectious diseases diffuse directly or indirectly from human to human.
chronic (or degenerative) diseases Generally long-lasting afflictions now more common because of higher life expectancies.
genetic or inherited diseases Diseases caused by variation or mutation of a gene or group of genes in a human.
endemic A disease that is particular to a locality or region.
AIDS (Acquired Immune Deficiency syndrome) Immune system disease caused by the Human Immunodeficiency Virus (HIV) which over a period of years weakens the capacity of the immune system to fight off infection so that weight loss and weakness set in and other a
expansive population policies Government policies that encourage large families and raise the rate of population growth.
eugenic population policies Government policies designed to favor one racial sector over others.
restrictive population policies Government policies designed to reduce the rate of natural increase.
one-child policy A program established by the Chinese government in 1979 to slow population growth in China.
Created by: KT's AP HG
Popular AP Human Geography sets




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