Global Citizens Flashcards
What is world population distribution?
‘World Population Distribution’ refers to the spread of people across the planet. This distribution is not even but is very uneven. This means parts of our world are sparsely populated and others are densely populated.
What are the 4 main sparsely populated areas?
Deserts, rain forests, mountains and polar areas.
Why are deserts sparsely populated?
Lack of water Too dry Too hot of a climate Fierce winds and sandstorms Little soil for crops to grow Sand makes communications difficult
Why are rain forests sparsely populated?
Too hot for people Too wet for people Rainforest infertile, corrosive soil Communications and settlement difficult Dangerous
Why are mountains sparsely populated?
Too cold Thin air Bad for communication Steep slopes are bad for settlement Poor thin soil
Why are polar areas sparsely populated?
Too cold Permanent day of night No soil Communications difficult Vastness Settlement difficult
Name 6 densely populated areas.
Japan Eastern china South East China Nile Valley/Delta North West Europe North-East USA
Name 4 reasons for high population density?
- Less extreme climates
- Flatter land- often close to the sea
- Fertile soils e.g. the flood plains of the world
- Areas of industrial activity and urban settlement e.g. North West Europe and NOrth East USA.
What is internal migration?
Internal migration is people moving within a country- this does NOT change the country’s population size.
What is international migration?
International migration is people moving between countries and will change population size. It is therefore very important to know thr balance between those entering (IMMIGRATION) and those leaving (EMMIGRATION).
When did world population reach 7 billion?
2011
What was the world population in 1800?
1billion
What are the tree biggest populated countries in the world?
- China
- India
- United states
What 4 factors contribute to population size?
Birth rate
Death rate
Immigration
Emmigration
What factors contribute to a high birth rate?
Rural population
Children needed for work
High levels of infant deaths
What factors contribute to a high death rate?
Short life expectancy
Large elderly population
What factors contribute to a falling/low birth rate?
Artificial methods of contraception Later marriage Urban population Desire for more material possessions Emancipation of women Compulsory education
What factors contribute to a low/falling death rate?
Clean water supply Public health acts of parliament Vaccinations agains infectious disease Improved hospital care Sewage system
What is the crude birth rate?
Birth or crude birth rate(CBR)- the number of births is given by the crude birth rate. This figure tells us for every thousand people in a countries population how many babies are added per year. E.g. 40/1000/YR (High)
9/1000/YR (Low)