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Unit 6: Test 2
Population - Test 2
Term | Definition |
---|---|
replacement rate | the total fertility rate needed for a population to replace itself (This is usually around 2.1) |
baby boomers | people born after WWII, from 1946 to 1964 in the United States and Allied countries |
pension | a fixed amount of money paid regularly to a person, following retirement from work |
dependency ratio | the number of old and young dependents compared to the working population who supports them |
doubling time | the length of time it takes for a population to double |
famine | a severe shortage of food that results in widespread hunger |
arable land | land suitable for growing crops |
arithmetic population density | the population of a country divided by its total land area. This calculation assumes people can live anywhere within a country. |
physiologic population density | the population of a country divided by its total arable land area. This calculation takes into account that there are many places that people can’t live within a country. |