Demography: The Study Of Human Population -

Most modern demographic analysis is framed by the , which describes the historical shift from high birth and death rates to low ones as societies develop.

: Death rates fall due to better sanitation and medicine, while birth rates remain high, leading to rapid population growth. Demography: The Study of Human Population

The structure and evolution of any population are determined by three fundamental variables: Most modern demographic analysis is framed by the

: Both rates are low; the population stabilizes. while birth rates remain high