Chapter 9 vocab Flashcards
Demography
is the study of population
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
the 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
is a model that de-scribes how economic and social changes affect population growth rates
infrastructure
is the basic facilities and services that support a community, such as public water supplies, sewer lines, power plants, roads, schools, and hospitals.
Arable land
which is land that can be used to grow crops.
Urbanization
the movement of people from rural areas to cities.
least developed countries
These countries show few signs of development and in some cases have increasing death rates while birth rates remain high.Least developed countries are officially identified by the United Nations using three criteria: low income, weak human assets, and economic vulnerability.