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Chapter 2 Vocab
Vocab needed for Chapter 2 in AP Human Geography
25
Geography
9th Grade
09/26/2011

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Term
Demographic Transition
Definition
Society's change in natural increase, fertility, and mortality rates over time.
Term
Demography
Definition
The scientific study of population characteristics
Term
Agricultural Revolution
Definition
The time around 8000 B.C. when human beings first domesticated plants and animals and no longer relied on hunting and gathering.
Term
Infant Mortality Rate (IMR)
Definition
The annual number of deaths of infants under 1 year of age, compared with total live births.
Term
Total Fertility Rate (TFR)
Definition
The average number of children per woman in a society
Term
Arithmetic Density
Definition
The total number of people divided by the total land area.
Term
Overpopulation
Definition
A problem that results when an area's population exceeds the capacity of an environment to support it at an acceptable standard of living.
Term
Ecumene
Definition
The area of the Earth's surface occupied by permanent human settlement.
Term
Physiological Density
Definition
In a region, the number of people supported by a unit area of arable land.
Term
Agricultural Density
Definition
The ratio of the number of farmers to the amount of arable land.
Term
Crude Birth Rate (CBR)
Definition
The total number of live births in a year for every 1000 people alive in the society
Term
Crude Death Rate (CDR)
Definition
The total number of deaths in a year for every 1000 people alive in the society.
Term
Natural Increase Rate (NIR)
Definition
The percentage by which a population grows in one year.
Term
Doubling Time
Definition
The number of years it takes for a population to double.
Term
Life Expectancy
Definition
Measures the average number of years a newborn infant can live at current mortality levels.
Term
Industrial Revolution
Definition
Began in England second half of the 18th century. A conjunction of major improvements in industrial technology that transformed the process of manufacturing goods and delivering them to market.
Term
Medical Revolution
Definition
In the second half of the 19th century when medical technology invented in Europe and North America diffused to less developed countries in Africa, Asia, and Latin America.
Term
Zero Population Growth (ZPG)
Definition
The condition when CBR declines to the point where it equals the CDR, and the NIR approaches zero.
Term
Population Pyramid
Definition
A bar graph that displays a country's population by age and gender groups.
Term
Dependency Ratio
Definition
The number of people who are too old or too young to work, compared to the number of people in their productive years.
Term
Sex Ratio
Definition
The number of males per hundred females in the population.
Term
Epidemiologic Transition
Definition
Focuses on distinctive causes of death in each stage of the demographic transition.
Term
Epidemiology
Definition
The branch of medical science concerned with incidence, distribution, and control of diseases that affect large numbers of people.
Term
Pandemic
Definition
Disease that occurs over a wide geographic area and affects a very high percentage of the population.
Term
Census
Definition
A means of collecting statistical data on a population through a set of surveys mailed to every address in the nation.
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