click below
click below
Normal Size Small Size show me how
Population
Population-LeBlanc
Word | Definition |
---|---|
agricultural density | the ration of the number of farmers to the total amount of land suitable for agriculture |
agricultural revolution | time when human beings frist domesicated plants and animals and no longer relied on hunting and gathering |
arithmetic density | the total number of people divided by the total land area |
census | a complete enumeration of a population |
crude birth rate | the total number of live births in a year for every 1000 people alive in the society |
crude death rate | the total number of deaths in a year for every 1000 people alive in the society |
demographic transition | a process of change in a society's population |
demography | the scientific study of population characteristics |
dependancy ratio | the number of people under the age of 15 and over age 64, compared to the number of people active in the labor force |
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 permenant human settlement |
industrial revolution | a series of improvements in industrial technology that transformed the process of manufacturing goods |
infant moratility rate | 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 a newborn infant can expect to live at current mortality levels |
medical revolution | medical technology invented in Europe and North America difused to the less developed countries of Africa, Asia, and Latin America |
natural increase rate | the percentage by which a population grows in a year |
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 supported by a unit area of arable land |
population pyramid | a country's population displayed by age and gender groups on a bar graph |
sex ratio | the number of males per 100 females in the population |
total fertility rate | the average number of children a woman will have throughout her child bearing years |
zero population growth | when a country's crude birth rate declines until it equals the crude death rate and the natural increase rate approches 0 |