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Factors that influence population structure
natural increase and net migration
DTM (demographic transition model)
Natural increase def
Difference between BR and DR
Birth Rate def
number of live births per 1000 of the population per year
Death Rate def
Number of deaths per 1000 of the population per year
Population distribution
The way people are spread out across a given area, from a small region to the earth as a whole
Crude birth rate def
It’s a basic measure of fertility. It does not count the age or sex structure of the population. It is calculated by Number of births/Total population x 1,000
Net Migration def
Calculated by immigration - emigration (per 1,000 ppl per year)