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Population revision notes

Population change is usually due to one of two factors; Natural change and net migration. Natural
change reflects the balance between birth-rates and death rates, an imbalance causes population
change. These change as seen bellow

Fertility (Birth rates) Effect Mortality (death rates)
Higher when there are more…

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The world's population is unevenly distributed with the top 10 most populated countries having 60%
of the population but only 40% of the land area. The most densely populated country in the world is
Bangladesh with 953 people per km2. Distribution of population is how it is spread out and…

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Not all countries it the demographic transition model. China for example doesn't fit for a number of
government policies. During the early 1950s China modernised leading to death rates falling but in
the late 50s early 60s birth rates fell dramatically as death rats dramatically rose. This was the policy…

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The source region of migration is where people migrate from and the host region is where they
migrate to.



Other characteristics include; Distance, direction, volume , cause, motivation and economic reasons.
Circulation is very short term migration such as for tourism or shopping. Here are some examples

Mexico to USA-…

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asylum seekers are Kurdish refugees fleeing persecution in the middle east . Countries like Iraq
where in 1988 the Anfal campaign ethnically cleansed 182,000 kurds including the infamous chemical
weapons attack on the town of Halabja killing 5000 people. After the collapse of an Uprising 1.5
million Kurds fled to…

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To combat many economic and social problems government are discouraging early
retirements.



Economic-

215 billion spent by the "grey pound"- Elderly spending on recreation etc
Stress on health services- Cheaper option is keeping people in their own homes than to pay
for hospital care
Carers are young people with low…

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This has meant Gambia has maintained low levels (2%) compared to the rest of frica where
74% of all aids cases live. Aids is a disease of young people and so a problem in youthful
populations

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