Ch. 9 Key Terms Flashcards
Demography
study of populations
age structure
the distribution of ages in a specific population at a certain time
Survivorship
the percentage of members of a group that are likely to survive to any given age
fertility rate
average number of children a woman gives birth to in her lifetime
migration
the movement of individuals from one area to another
life expectancy
the average number of years members of a population are likely to live
demographic transition
a model that describes how economic and social changes affect population growth rates
infrastructure
basic fascilities and services that support a community
arable land
land that can be used to grow crops
urbanization
the movement of people from rural areas to cities
least developed countries
show few signs of development and in some cases have increasing death rates while birth rates remain high.
