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EB- Chapter 4

TermDefinition
I=PAT Environmental impact= Population*Affluence*Technology Larger pop=more impact Greater Afflu=more resource use Technology= can increase or decrease
Ecological Footprint the amount of land & resources needed to support an individual/population. Calculated using energy use, food, water, waste, carbon emissions, etc.
Population Growth Rate vs Size Size = total number of people. Growth rate = percent increase per year (birth rate – death rate + migration).
Calculating Growth Rate (births−deaths)+(immigration−emigration)/(total population)​×100%
Life Expectancy vs Lifespan Life expectancy = average number of years a person is expected to live. Lifespan = maximum years a person of a generation could live.
Dependency Ratio ratio of non working ( young +elderly) to working age population High ratio = more pressure on workers, economy, healthcare
Demographic Transition Shift from high birth & death rates to low birth & death rates as the country industrializes.
Demographic Transition Stage 1 High birth & death --> stable population
Demographic Transition Stage 2 Death rates drop (better healthcare, food) --> population growth
Demographic Transition Stage 3 Birth rates drop (education, urbanization) --> slowing growth
Demographic Transition Stage 4 Low birth & death --> stable/ shrinking population
Overpopulation Remedies Thailand → family planning education, contraceptives, community programs. China → one-child policy (now ended), later two-child & three-child policies.
Demography the study of human populations, including size, growth, density, distribution, and vital statistics (births, deaths, migration).
Fecundity the biological capacity to reproduce (the potential number of offspring an individual could produce under ideal conditions).
Fertility the actual number of offspring produced by an individual or population (real reproductive performance, not just potential).
Crude Birth Rate number of live births per 1,000 people in a population per year.
Total Fertility Rate the average number of children a woman is expected to have over her lifetime, based on current birth rates.
Life Expectancy the average number of years a newborn is expected to live under current mortality conditions.
Pronatalist a policy or cultural belief that encourages higher birth rates and larger families (ex: tax breaks for children, family subsidies).
Created by: jovisusie
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