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Describe how the population of the world has grown in history. What has caused the population explosion?
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10/06/2021 12:49 pm
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Describe how the population of the world has grown in history. What has caused the population explosion?
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10/06/2021 12:50 pm
The world population grew steadily initially. It reached a billion in the year 1820. But the next two billion were added in just a hundred and fifty years. By 1970 the population was 3 billion. In the next 29 years, i.e. by the year 1999, the population had doubled to 6 billion. The population explosion has been mainly caused by the growth in medical facilities, which has decreased the death rate to a large extent.
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