higher rank varies and has a lower limit of zero with no know upper limit. Populations are by definition made up of individuals. The study of human population is termed demography. Demography studies the size and story of a population, as well as migration and location of the population. Demographers swing birth pass judgment and death rates and superintend the population growth and beat a line to exempt them in terms of the social systems development. ...If you want to get a full essay, order it on our website: BestEssayCheap.com
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