UNIT 2 REVIEWUNIT 2 REVIEW

POPULATIONPOPULATION

POPULATION POPULATION DISTRIBUTION AND DISTRIBUTION AND

DENSITYDENSITY

DISTRIBUTIONDISTRIBUTION

ECUMENEECUMENE• Portion of Portion of

the earth’s the earth’s surface that surface that is habitable is habitable for humans.for humans.

DENSITYDENSITY

FOUR MAJOR POPULATION FOUR MAJOR POPULATION CLUSTERSCLUSTERS

1.1. East AsiaEast Asia

2.2. South AsiaSouth Asia

3.3. EuropeEurope

4.4. Southeast AsiaSoutheast Asia

KEY TERMSKEY TERMS

TOTAL FERTILITY RATE (TFR)TOTAL FERTILITY RATE (TFR)

• Number of children predicted to be born Number of children predicted to be born to a woman as she passes through fertile to a woman as she passes through fertile yearsyears

Infant Mortality Rate (IMR)Infant Mortality Rate (IMR)• Number of deaths of children under 1 Number of deaths of children under 1

year of age per 1,000 births over a year of age per 1,000 births over a year.year.

Rate of Natural Increase (RNI)Rate of Natural Increase (RNI)• Natural growth rate of a Natural growth rate of a

population, which is population, which is CBR minus CDR CBR minus CDR expressed as a expressed as a percentage. A positive percentage. A positive RNI indicates a growing RNI indicates a growing population, whereas a population, whereas a negative RNI indicates a negative RNI indicates a population reducing in population reducing in size. An RNI equal to size. An RNI equal to zero indicates a zero indicates a stabilizing population.stabilizing population.

LIFE EXPECTANCYLIFE EXPECTANCY• Average number of years a person is Average number of years a person is

expected to live.expected to live.

DEMOGRAPHIC DEMOGRAPHIC TRANSITIONTRANSITION

FOOD PRODUCTIONFOOD PRODUCTION

POPULATION POPULATION PYRAMIDSPYRAMIDS

MIGRATIONMIGRATION

MIGRATIONMIGRATION

• A permanent move to a new location.A permanent move to a new location.

Pull FactorPull Factor

• Factor that attracts a migrant to a Factor that attracts a migrant to a region, such as good schools or nice region, such as good schools or nice weather.weather.

Push FactorPush Factor

• Factor that causes a migrant to move Factor that causes a migrant to move out of a region, such as high taxes or out of a region, such as high taxes or poor schools.poor schools.

IMMIGRATION BY COUNTRYIMMIGRATION BY COUNTRY

MAJOR MIGRATION STREAMSMAJOR MIGRATION STREAMS

MIGRATION STREAMS TO THE MIGRATION STREAMS TO THE U.S.U.S.

U.S. INTERREGIONAL U.S. INTERREGIONAL MIGRATIONMIGRATION

U.S. INTRAREGIONAL U.S. INTRAREGIONAL MIGRATIONMIGRATION