geography IGCSE population

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population

Factors that influence the rates of natural increases in the population of a country

- access to clean safe drinking water - this is important because it is an essential part of life and is used for everything

-contraception pills - the uses of contraception pills allows the birthrates to fall when they are to high and allows woman to have a say if they want to have a baby or not

- access to healthy food - if you eat a healthy diet than you are more likely to live longer however if you eat junk food and become obese than you are most likely to die younger. this would depress the population

- antibiotics - death rates will go down and birthrates go up because more people are living for longer therefore the population will increase.

- lifestyle - lots of people have children later so they can travel more and spend more money on themselves and start a career so birth rates go down.

- family income - people in Africa like to have lots of children to help work on farms and to bring more family income. this would increase the population

- education - women have a choice in whether they want to have a child or not as more and more people are educated on contraception

- infant mortality - this means a decrease in population if there is an increase in death rates this is because of the lack of proper medication this can start from not having clean food for water

- natural disasters - decrease in world population. increases in death rate. Natural disasters can kill lots of people at once and in LEDCs the people who are injured usually don't get the correct health care

Topic 1.1

Over and under population

1. Overpopulation is when a population of a country exceeds its carrying capacity. Overpopulation is when the population is so large compared to its resources

e.g. Nigeria. growth rate 2.8% FR 5.5. problems: to many people compare to jobs housing schooling which means bad facility.

2. Under population is when there are to few people in a country to use the existing resources.

e.g. Austria: FR - 1.9% growth rate - 1.8% not enough people for jobs facility are not the best as government wont have enough money to import immigrates to work there.

changes in population

- Population numbers change over time, influenced by births, deaths religion and migration into or out of the area

- baby booms post WW2

- in LEDC family's want many children to help with farming

- a decress in population if there is better health care. family planning

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