Demographic Transition Model - This is a model that explains why countries go through a period of rapid population growth when mortality and fertility rates decline at the same time. , Stage 2  - Birth rates remain very high whilst death rates begin to fall resulting in a rapid growth in population size. , Stage 3 - Birth rates begin to rapidly decrease as family planning and contraception becomes available. , Stage 4 - BR is so low that in some countries there is a decrease in overall population size, such as Japan.,

Demographic Transition Model

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