AP Human Geography Chapter 2 key issue 1 & 2 Vocab

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Agricultural Density
The ratio of the number of farmers to the total amount of land suitable for agriculture.
Arithmetic Density
The total number of people divided by the total land area.
Crude Birth Rate (CBR)
The total number of live births in a year for every 1000 people alive in the society.
Crude Death Rate (CDR)
The total number of deaths in a year for every 1000 people alive in the society.
Doubling Time
The number of years needed to double a population, assuming a constant rate of natural increase.
Ecumene
The portion of Earth’s surface occupied by permanent human settlement.
Infant Mortality Rate (IMR)
The total number of deaths in a year among infants under one year old for every 1000 live births in a society.
Life Expectancy
The average number of years an individual can be expected to live, given current social, economic, and medical conditions. Life expectancy at birth is the average number of years a newborn infant can expect to live.
Natural Increase Rate (NIR)
The percentage growth of a population in a year, computed as the crude birth rate minus the crude death rate.
Overpopulation
The number of people in an area exceeds the capacity of the environment to support life at a decent standard of living.
Physiological Density
The number of people per unit of area of arable land, which is land suitable for agriculture.
Total Fertility Rate (TFR)
The aver number of children a woman will have throughout her childbearing years.
Categories: Geography