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6.95 billion; 2/3 are in 4 concentration areas: east asia, south asia, europe, southeast asia
east asia concentration
1/4 of world pop. which includes eastern china (5/6 of concentration), japan, korea, and taiwan
south asia concentration
1/4 of world pop. which includes india (2nd largest in the world), pakistan, bangladesh, and sri lanka
southeast asia concentration
9% of world pop. (emerging concentration) mainly the islands between the indian and pacific oceans including java (indonesia), sumatra, borneo, papua, and the philippines
the portion of earth's surface occupied by permanent human settlement (excludes all population voids such as cold climates, dry lands, wet lands, high lands)
the number of people supported by a unit area of arable land (land suited for agriculture); the higher the density, the great the pressure that people may place on the land to produce enough food
1798 "an essay on the principle of population" book, pessimist view on overpopulation; said humans reproduce geometrically (2,4,8,16) and food produces arithmetically (1,2,3,4), eventually will run out of food
natural increase rate
percentage by which a population grows in a year, births-deaths;
the world is growing at 1.2% (or 80 million) a year; US=.6%; 99% of pop growth is in LDCs
crude birth rate
number of live births per 1000 people
Afghanistan is very high; US=14 per 1000 people
total fertility rate
number of children per women during reproductive lifetime;
US=2 children/woman; world average=2.5;
agrarian preindustrial society (hunting and gathering); a lot of babies, high death rate, low pop growth
beginning of industrialization (1800s); high birth rates, decreasing death rates (bc of sanitation, ag industrialization, food improved), population explosion
late industrialization; birth rates drop, death rates drop, pop growth peeks and begins to decrease
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