What do you understand by demographic transition theory? Explain the first stage and the third stage of demographic transition theory. -Geography

What do you understand by demographic transition theory? Explain the first stage and the third stage of demographic transition theory. -Geography
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1 Answer

Answer :

(a) Demographic transition theory can used to describe and predict the future population of any area. It tells that population of any region changes from high births and high deaths to low births and low deaths as a society progresses.  (b) The first-stage:  (i) It has fertility and high mortality because people reproduce more to compensate for the deaths due to epidemics and variable food supply.  (ii) Population growth is slow and most of the people are engaged in agriculture where large families are an asset. Life expectancy is low, people are mostly illiterate and have low levels of technology.  (c) The third stage (last stage)  (i) Both fertility and mortality decline considerably. The populations is either stable or grows slowly.  (ii) The population becomes urbanised, literate and has high technical knowhow and deliberately controls the family size.
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