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UNIT 3 Chapter 9 Notes Page 18 in notebook QUIZ #11.

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1 UNIT 3 Chapter 9 Notes Page 18 in notebook QUIZ #11

2 Changes in population DEMOGRAPHY – study of populations
AGE STRUCTURE – distribution of ages in a specific population, used to make predictions POPULATION PYRAMID – graph for age structure SURVIVORSHIP – percent of population likely to survive LIFE EXPECTANCY – number of years individuals are likely to live p. 212

3 INFANT MORTALITY RATE – death rate of infants less than a year old
p. 237 INFANT MORTALITY RATE – death rate of infants less than a year old IMMIGRATION – move in EMIGRATION – move out FERTILITY RATE– Number of babies born for every 1000 women

4 Population Growth p.239 The four stages of DEMOGRAPHIC TRANSITION is a model describing economic and social changes affect population growth rates. 2nd stage 1st stage Population grows fast, death rate declines but birth rate remains high Preindustrial, high birth and death rate 3rd stage 4th stage Growth slows, because birth rate decreases Birth rate drops below replacement level pop. decreases

5 Population trends p.241 INFRASTRUCTURE – basic facilities and services that support a city Water, power plants, roads, schools, hospitals

6 ARABLE LANDS – crop land
Also called rural URBANIZATION – people move from rural to cities SUBURBAN SPRAWL – people work in the city but live in suburbs


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