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Chapter 3 Section 1

TermDefinition
Population The total number of people in an area
Population Distribution The way the population is spread out over an area
Demography The science that studies population distribution and change
Population Density The average number of people per square mile or square kilometer
Birthrate The number of live births each year per 1,000 people
Death rate The number of deaths each year per 1,000 people
Population Growth Depends on birthrate and death rate
“Formula” for Population Density population / area
Why has population increased rapidly since 1800? Examples: Better farming and greater food supply; more clean water; better medicine and healthcare
What are some challenges of population growth? Examples: Not enough fresh water or food; not enough jobs; not enough schools; negative effects on the environment (pollution, destroyed forests)
Created by: wcabana