Ch 3 Review 2/12/14 Flashcards
total number of people
population
the science that tries to explain how populations change and why population distribution is uneven
demography
is the way the population is spread out over an area
population distribution
the average number of people per square mile or square kilometer
population density
is the number of live births each year per 1,000 people
Birthrate
average number of years that people live
Life expectancy
recent scientific improvements in agriculture
Green revolution
people’s movement from one place or region to another
Migration
people who move into one country from another
Immigrants
say that most people migrate because difficulties push them to leave and a hope of a better life pulls the people to a new country
Push-pull
the biggest involuntary migration in history from the 1500s to the 1800s
Transatlantic slave trade
the movement of people to the cities and the growth of cities
Urbanization
people buy and use products
Consumers
and economic system in which private individuals own most business
Capitalism
an economic system in which the central government owns farms, factories, and offices
Communism