what are the four stages of the demographic transition?

Environmental Science
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what are the four stages of the demographic transition

Jun 2nd, 2015

The four stages are:

1) Pre-transition: characterized by high birth rates AND high death rates. Population growth is kept in check by both mortality and tradition.

2) Early Transition: Death rate levels off or falls; birth rate remains high. Net effect: population growth rapidly increases.

3) Late Transition: Birth rates level off or decrease slightly. Population growth levels off.

4) Post-Transition: Birth rates level off or even decline; population levels off or declines; age of death seen to increase.

Jun 2nd, 2015

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Jun 2nd, 2015
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Jun 2nd, 2015
Dec 7th, 2016
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