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AP Human Chpt 2 Matching
Doubling Time
The number of years needed to double a population, assuming a constant rate of natural increase.
Natural Increase Rate
(NIR) The percentage growth of a population in a particular ethnicity that has been transformed into a nationality.
Pandemic
Disease that occurs over a wide geographic area and affects a very high proportion of the population.
Dependency Ratio
The number of people under the age of 15 and over age 64, compared to the number of people active in the labor force.
Demography
The scientific study of population characteristics.
Overpopulation
The number of people in an area exceeds the capacity of the environment to support life at a decent standard of living.
Ecumene
The portion of the Earth's surface occupied by permanent human settlement.
Population Pyramid
A bar graph representing the distribution of population by age and sex.
Crude Death Rate
(CDR) The total number of deaths in a year for every 1,000 people alive in society.
Agricultural Revolution
The time when humans first domesticated plants and animals and no longer relied entirely on hunting and gathering
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