Ch. 9 Key Terms Flashcards
Demography
The 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 who are likely to survive to any given age.
Fertility rate
The number of babies born each year per 1,000 women in a population.
Migration
The movement of individuals between areas.
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
The basic facilities and services that support a community.
Arable land
Infrastructure the basic facilities and services that support a community arable land land that can be used to grow crops.
Urbanization
Arable land land that can be used to grow crops urbanization the movement of people from rural areas to cities.
least developed countries
Countries that show few signs of development.
