How can we help?

You can also find more resources in our Help Center.

Chapter 2. Population and Chapter 3. Migration

Vocabulary Terms for Unit 2.
STUDY
PLAY
Agricultural Revolution
The time when human beings first domesticated plants and animals and no longer relied entirely on hunting and gathering
census
a period count of the population
crude birth rate
the number of live births yearly per 1,000 people.
crude death rate
The number of deaths per year per 1,000 people.
demographic transition
The process of change in a society's population from a condition of high crude birth and death rates and low rate of natural increase to a condition of low crude birth and death rates, low rate of natural increase, and a higher total population.
demography
the scientific study of population characteristics
dependency ratio
The number of people under the age of 15 and over age 64, compares to the number of people active in the labor force.
doubling time
The number of years needed to double a population, assuming a constant rate of natural increase.
epidemiologic transition
Distinctive causes of death in each stage of the demographic transition.
epidemiology
Branch of medical science concerned with the incidence, distribution, and control of diseases that affect large numbers of people.
ecumene
The portion of Earth's surface occupied by permanent human settlement.
industrial revolution
A series of improvements in industrial technology that transformed the process of manufacturing goods.
infant mortality rate
the number of deaths in the first year of life for every 1,000 live births
overpopulation
The number of a people in an area exceeds the capacity of the environment to support life at a decent standard of living.
life expectancy
The average number of years an individual can be expected to live, given current social, economic, and medical conditions. Life expectancy at birth is the average number of years a newborn infant can expect to live.
medical revolution
Medical technology invented in Europe and North America that is diffused to the poorer countries of Latin America, Asia, and Africa.
natural increase rate
The percentage growth of a population in a year, computed as the crude birth rate minus the crude death rate.
pandemic
an epidemic that is geographically widespread
physiological density
The number of people per unit of area of arable land, which is land suitable for agriculture.
population pyramid
A bar graph representing the distribution of population by age and sex.
sex ratio
The number of males per 100 females in the population.
total fertility rate
The average number of children a woman will have throughout her childbearing years.
zero population growth
A decline of the total fertility rate to the point where the natural increase rate equals zero.
brain drain
Large-scale emigration by talented people.
chain migration
migration of people to a specific location because relatives or members of the same nationality previously migrated there
circulation
Short-term, repetitive, or cyclical movements that recur on a regular basis.
counterurbanization
Net migration from urban to rural areas in more developed countries.
emigration
migration FROM a location
floodplain
The area subject to flooding during a given number of years according to historical trends.
forced migration
Permanent movement compelled usually by cultural factors.
guest workers
Workers who migrate to the more developed countries of Northern and Western Europe, usually from Southern of Eastern Europe or from North Africa, in search of higher-paying jobs.
immigration
migration to a new location
internal migration
Permanent movement within a particular country.
international migration
permanent migration from one country to another.
interregional migration
Permanent movement from one region of a country to another.
intervening obstacle
An environmental or cultural feature of the landscape that hinders migration.
intraregional migration
Permanent movement within one region of a country.
migration
Form of relocation diffusion involving permanent move to a new location.
migration transition
Change in the migration pattern in a society that results from industrialization, population growth, and other social and economic changes that also produce the demographic transition.
mobility
All types of movement from one location to another.
net migration
The difference between the level of immigration and the level of emigration.
pull factors
a factor that draws or attracts people to another location
quota
In reference to migration, a law that places maximum limits on the number of people who can immigrate to a country each year
refugees
People who are forced to migrate from their home country and cannot return for fear of persecution because of their race, religion, nationality, membership in a social group, or political opinion.
undocumented immigrants
People who enter a country without proper documents.
voluntary migration
Permanent movement undertaken by choice.