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What is the number of years it takes a specific population to double in size?
Wiki User
∙ 7y ago
The time it will take for a population to double is based on numerous factors, not solely time. The fertility rate, food production rate, security (from foreign invasions and domestic violence or revolt), mortality rate, and numerous other elements are requisite to determine how long it will take a population to double in size. In many cases, the combination of these factors will not lead to any growth at all (such as in a war-torn country with massive human flight or a stable country where the fertility rate is less than 2.0 and there is no Immigration).
Wiki User
∙ 7y ago
The time it takes for a population to double in size can be calculated using the rule of 70, which states that you divide 70 by the percentage growth rate of the population. For example, if a population grows at a rate of 3% per year, it would take approximately 70/3 = 23.3 years for the population to double in size.
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Below is the formula for calculating the number of years it takes for a population to double This formula uses the percent annual population growth rate or r If a country has an annual population g?
34 years 41 years
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