This KS3 quiz takes a look at population. In Geography the word 'population' means the people living in a given area. As of November 2010, the world population was estimated by the United States Census Bureau to be 6.882 billion. In 1800, the world population was estimated as being about one billion and by the end of the 1800s, it was still below two billion. Since the 1920s, population growth has accelerated and in the last two generations (i.e. going back to the time when your grandparents were born) it has more than doubled.
All these people need to live somewhere. In general, the less economically developed countries have higher population growth than richer countries. Families are often larger because there is a lack of family planning centres. Living in the country is very difficult and large numbers of people migrate to urban areas. There are many reasons for this, they are classified as push (e.g. no food or clean water where they live) and pull (e.g. better healthcare and more jobs) factors.
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You can find more about this topic by visiting BBC Bitesize - Population and migration
Usually measured by the number of people per square kilometre
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A lot of megacities have large numbers of homeless people living in slums
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Estimated to be over 9 billion by the year 2050
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LEDCs usually have higher birth rates and lower life expectancies than richer countries
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Over 500 people per sqare kilometre in places
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In the UK, many rural communities are losing useful facilities like shops and post offices because people commute to cities to work
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There are many causes of migration
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Paris has only just over 2 million people
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The other three are 'push' factors
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Child benefits are more readily available in developed countries
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