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Chapter 2:Population
vocab for chapter 2
Question | Answer |
---|---|
overpopulation | number of people and the availability of necessary resources needed |
demography | scientific study of population characteristics |
ecumene | the portion of Earth's surface occupied by permanent human settlement |
What are the four regions with a sparse amount of people? | dry lands, cold lands,high lands and wet lands |
why are wet, dry, cold, and high lands not very inhabitable? | because they have bad conditions to farm and build |
arithmetic density | total # of people divided by total land area |
physiological density and arable land | # of people per unit of arable land (arable land=land suited for agriculture) |
agricultural density | ratio of the # of farmers to the amount of arable land |
Crude birth rate (CBR) | total # of live births in a year for every 1,000 people alive in the society |
crude death rate (CDR) | total # of deaths in a year for every 1,000 people alive in the society. |
Natural increase rate | percentage by which population grows in a year |
doubling time | # of years needed to double a population, assuming a natural increase. |
total fertility rate (TFR) | number of births in a society |
infant mortality rate (IMR) | annual # of infant deaths under one year of age compared with total live births |
Life expectancy | birth measures the average number of years a newborn infant can expect to live current mortality levels |
demographic transition | a similar process of change in a society's population |
agricultural revolution | time when human beings first domesticated plants and animals and no longer relied entirely on hunting and gathering |
industrial revolution | a quick major improvement in industrial technology. |