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AP Unit 2 Chapter 3

QuestionAnswer
Arithmetic Density The total number of people divided by the total land area.
Physiological Density The number of people per unit of area of arable land, which is land suitable for agriculture.
arable land land suitable for growing crops
Agricultural Density The ratio of the number of farmers to the total amount of land suitable for agriculture
Ecumene The portion of Earth's surface occupied by permanent human settlement.
Demography The scientific study of population characteristics.
Crude Birth Rate (CBR) The total number of live births in a year for every 1,000 people alive in the society.
Crude Death Rate (CDR) The total number of deaths in a year for every 1,000 people alive in the society.
Natural Increase Rate (NIR) The percentage growth of a population in a year, computed as the crude birth rate minus the crude death rate.
positive population growth When the crude birth rate of a country exceeds the crude death rate.
negative population growth When the crude death rate of a country exceeds the crude birth rate.
Zero Population Growth (ZPG) A decline of the total fertility rate to the point where the natural increase rate equals zero.
Demographic Balancing Equation Total Population Change = Births - Deaths + Immigrants - Emigrants
Total Fertility Rate (TFR) The average number of children a woman will have throughout her childbearing years (15-49 years old).
infant mortality rate The total number of deaths in a year among infants under one year old for every 1,000 live births in a society.
Maternal Mortality Rate The number of women who die giving birth per 100,000 births
life expectancy The average number of years an individual can be expected to live, given current social, economic, and medical conditions.
dependency ratio The number of people under age 15 and over age 64 compared to the number of people active in the labor force
sex ratio the ratio of males to females in a population
doubling time The number of years needed to double a population, assuming a constant rate of natural increase. Natural Increase Rate divided by 70.
Population Pyramid A bar graph representing the distribution of population by age and sex.
population distribution Description, Arrangement, Spread of locations on Earth's surface where populations live
population density A measurement of the number of people per given unit of land
Midlatitudes Between 30 N and 60 N and 30 S and 60 S
carrying capacity Largest number of individuals of a population that a environment can support
overpopulation The number of people in an area exceeds the capacity of the environment to support life at a decent standard of living.
Created by: 100052058
 

 



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