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HG Ch.2
| Agricultural Density | ratio of the number of farmers to the amount of arable land |
| Agricultural Revolution | time when humans first domesticated plants and animals and no longer relied entirely on hunting and gathering |
| Arithmetic Density | total number of people/total land area |
| Census | important for human geographers; shows how much population there is of a certain race, ethnicity, and gender. |
| Crude Birth Rate (CBR) | total number of live births in a year for every 1000 people alive in society |
| Crude Death Rate (CDR) | total number of deaths in a year for every 1000 people in society |
| Demographic Transition | a process of change in society's population |
| Demography | scientific study of population characteristics |
| Dependency ratio | number of people too young or too old to work compared to number of people in their productive years |
| Doubling time | number of years needed to double a population |
| Epidemiologic transition | focuses on distinctive causes of death in each demographic transition stage |
| epemiology | branch of medical science concerned with the incidence, distribution, and control of diseases that affect large numbers of people |
| ecumene | portion of earth's surface occupied by permanent human settlement |
| industrial revolution | a time of major improvements in industrial technology |
| infant mortality rate (IMR) | annual number of deaths of infants under one year of age |
| life expectancy | the number of years a person may expect to live |
| medical revolution | when improved medical practices prevented deaths & extended lives |
| Natural Increase Rate (NIR) | percentage of which a population grows in a year |
| overpopulation | relationship of the number of people and the availability of resources |
| pandemic | a disease that occurs over a wide geographic area and affects a very high proportion of the population |
| physiological density | number of people supported by a unit area of arable land |
| population pyramid | shows the percentage of the total population in five-year age group |
| sex ratio | number of males per hundred of females in a population |
| total fertility rate (tfr) | average number of children a woman will have throughout her childbearing years |
| zero population growth | when birth rate drops to equal the death rate, and natural increase rate approaches zero |
| age cohort | group of people with a similar age |
| anti-natalist | concerned with limiting population growth |
| pro-natalist | an attitude that encourages childbearing |
| contraception | birth control by the use of devices drugs or surgery |
| population agglomeration | a cluster of people living in the same area |
Created by:
randyesfahani
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