APHG Chapter 3 Vocab
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Vocab for the entire unit of chapter 3
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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 Climates
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 to feed one’s family and close community using fewer mechanical resources and more people to care for the crops and livestock
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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 an age group (under age 15 and over age 65) divided by the number of people in the working-age group (ages 15-64) 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 characteristics of human populations
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Fertility
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 given in a population
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Total Fertility Rate (TFR)
The average number of children one woman in a given country or region will have during her childbearing years (ages 15-49)
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Mortality
Deaths as a component of population change
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Crude Death Rate (CDR)
The number of deaths given in a 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 a years a person is expected to live
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Population Pyramids
A graph that shows the age-sex distribution of a given population
Note 
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