Fichas
Chapter 2 12th Geo
Fichas del conjunto (15)
- 1Population distributionThe way people are spaced over the Earth surface
- 2Density of population1. Ratio between the number of people to the size of land
2. Usually measured in person per square kilometre
3. Density of population is equal to population/ area - 3Geographical factors influencing the distribution of population1. Availability of water - river valleys are among the most densely populated.
2. Landforms - favourable for the production of crops and to build roads and industries. Ganga Plains are among the most densely populated areas.
3. Climate - Mediterranean regions were inhabited from early periods due to the pleasant climate.
4. Soil - fertile loamy soil, support intensive agriculture. - 4Economic factors influencing distribution of population1. Minerals - mining and industrial activities generate employment. Ex: Katanga Zambia copperbelt in Africa.
2. Urbanisation - cities provide facilities so megacities attraction.
3. Industrialisation - job opportunities. Kobe Osaka region of Japan thickly populated coz number of industries - 5Social and cultural factors influencing distribution of population1. Religious and cultural significance.
2. People tend to move away from places where is social and political unrest.
3. Government offer incentive to people to live in a sparsely populated area. - 6Population growthGrowth of population: change of population in a particular area between two points of time.
A) Population change in an area- important indicator of economic development, social upliftment and historical and cultural background of the region. - 7Growth rate of populationChange of population expressed in percentage
- 8Natural growth of populationDifference between births and deaths in the region between two points of time.
natural growth = births - deaths - 9Actual growth of populationBirths - Deaths + In-migration - out-migration.
- 10Positive and negative growth of population1. Positive = Births > Deaths or
Immigration > Migration
2. Negative = Deaths > Births or
Migration > Immigration - 11Components of population changeThree components - births, deaths, and migration.
- 12Crude birth rate and Crude death rate1. CBR: No. of live births in a year per thousand of population, ie: CBR = Bi/P * 1000.
2. CDR: simple method of measuring mortality of any area. CDR= D/P * 1000. - 13migration1. Outgoing
2. Place of origin: the place they move from
3. Place of destination: the place they moved to
4. Migration may be permanent, temporary or seasonal. - 14ImmigrationIncoming
- 15Push and Pull factorsPush factors make place of origin seem less attractive.
Pull factors make place of destination seem more attractive.