Examlex
Many adolescent needs about _____ hours of sleep a night for optimal performance.
Demographic Transition
A model that describes the transition from high birth and death rates to low birth and death rates as a country develops from a pre-industrial to an industrialized economic system.
Concentric Zones
A model in urban sociology developed by Ernest Burgess that suggests cities expand outward from a central area in a series of concentric rings, each with its own characteristic use.
Chicago 1920s
A period marked by rapid industrial growth, cultural flourishing, and the Prohibition era's criminal activity in the city of Chicago.
Fertility Patterns
The trends and factors affecting birth rates and reproductive behavior within a population.
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