Chapter 3 | Patterns of Population
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Last updated 9:08 PM on 11/30/22
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23 Terms
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Population distribution
Where people live in a geographic area
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Climate
The long-term patterns of weather in a particular area
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Temperate Climate
A climate with moderate temperatures and adequate precipitation amounts.
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Landforms
The natural features of Earth’s surface
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Human migration
The permanent movement of people from one place to another
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Population density
The number of people occupying a unit of land
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Arithmetic Density
The total number of people per unit area of land; also called crude density
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Physiological density
The total number of people per unit of arable land
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Arable land
Land that can be used to grow crops
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Agricultural density
The total number of farmers per unit of arable land
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Subsistence agriculture
An agricultural practice that provides crops or livestock for only the farmers’ families and close community
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Carrying capacity
The maximum population size an environment can sustain
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Dependency ratio
The number of people in a dependent age group (under age 15 or age 65 and older) divided by the number of people in the working-age group (age 15 to 64), multiplied by 100
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Sex ratio
The proportion of males to females in a population
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Demographics
Data about the structures and charactistics of human populations
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Humans
The ability to produce children
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Crude Birth Rate (CBR)
The number of births in a given year per 1,000 people in a given population
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Total Fertility Rate (TFR)
The average number of children one woman in a given region will have during her child-bearing years (ages 15 to 49)
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Mortality
Deaths as a component of population change
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Crude Death Rate (CDR)
The number of deaths in a given year per 1,000 people in a given population
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Infant Mortality Rate (IMR)
The number of deaths of children under the age of 1 per 1,000 live births
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Life expectancy
The average number of years a person is expected to live
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Population pyramid
A graph that shows the age-sex distribution of a given population
