Question

Describe how the population of the world has grown in history. What has caused the population explosion?
Answer:​

Answer 1

Answer:

Overpopulation is caused by a number of factors. Reduced mortality rate, better medical facilities, depletion of precious resources are few of the causes which result in overpopulation. ... A direct result of this has been the increased lifespan and the growth of the population.

Explanation:

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Answer 2

The population of the world has grown in history

Explanation:

• In the beginning, there was a continuous increase in the world population. In 1820 it reached one billion.
• But the next two billion were added in just one hundred and fifty years.
• By 1970 the population was 3 billion. In the next 29 years, i.e. till 1999, the population was doubled to 6 billion.
• The population explosion has been mainly due to the increase in medical facilities, which has reduced the death rate to a great extent.