Demography and Global Population Dynamics
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Understanding Population and Demography
Population is the number of people inhabiting a territory. Demography is the science that studies the population and its characteristics.
Key Demographic Indicators
- Sex structure: The ratio between men and women is studied using population pyramids.
- Birth rate: Determines the number of births.
- Mortality: Determines the number of deaths.
- Natural or vegetative growth: The difference between the number of births and deaths.
- Emigration: The process of leaving one's country.
- Immigration: Entering a different realm or country.
- Net migration: The difference between the number of emigrants and immigrants.
- Real growth: The difference between natural growth and net migration.
Natural Population Movements
Birth Rates and Fertility
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