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Give a clear meaning of demography.

User Sumitsu
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Demography is the study of human populations – their size, composition and distribution across space – and the process through which populations change. Births, deaths and migration are the 'big three' of demography, jointly producing population stability or change.
User PhillyNJ
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Answer:

Demography is the scientific study of human populations primarily with respect to their size, their structure and their development; it takes into account the quantitative aspects of their general characteristics.

User Rockford Lhotka
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