Population and Demographic Variables

Population and Demographic Variables - the 2020s...

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Population and Demographic Variables Humans throughout history have generally favored large families—for the most part to  assure survival of a particular family line or racial group. High death rates from plagues,  predators, and wars led people to produce as many offspring as possible. However, the  situation has changed dramatically in the 20th century as technological advances of one  sort or another have caused a global “population explosion,” with the world currently  gaining 90 million people each year (most of this increase in poorer countries). Given  this trend, the global population will exceed 6 billion in the early 2000s, and 8 billion by 
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Unformatted text preview: the 2020s. Understandably, sociologists around the world exhibit urgent concern about increases in the global population. Demography (from the Greek word meaning “description of people”) is the study of human populations. The discipline examines the size and composition of populations, as well as the movement of people from locale to locale. Demographers also analyze the effects of population growth and its control. Several demographic variables play central roles in the study of human populations, especially fertility and fecundity, mortality and life expectancy, and migration ....
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