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APHG Ch.5

Chapter five key terms in text by HJ Blij/Alexander Murphy

TermDefinition
linear growth Rate of growth that advances in a straight line.
Exponential Growth Growth at a constant rate of increase per unit of time.
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 the ever-shorter doubling time and accelerating rates of increase.
Population Structure/Composition A population's makeup in terms of age, sex, or other properties such as martial status and education.
Age-sex pyramid Graphic representation of a population showing the percentages of the total population by age and sex.
Demography The study of population.
Natural Increase Rate (NIR) The difference between the number of births and the number of deaths during a specific period.
Crude Birth Rate (CBR) The number of live births per year per thousand people in the population.
Crude Death Rate (CDR) The number of deaths per thousand people in a population.
Total Fertility Rate (TFR) The number of children born to women of childbearing age.
Infant Mortality Rate (IMR) The number of babies that die within the first year of their lives in a given population.
Demographic Cycle/Transition Four stages of population change; high stationary stage, early expanding stage, late expanding stage, low stationary stage.
Demographic Transition Represented by stages 2 and 3 of the demographic cycle.
Stationary population level (SPL) The level at which a national population ceases to grow.
Created by: achrodes
 

 



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