33.4 years for South Africa to double
about 1 second
In 2011, China's population doubling time was approximately 32 years. This means that based on the population growth rate at that time, it would take around 32 years for the population to double in size.
At least eight years.
At a pace of 10m/sec it would take him 50 seconds.
1 second
how long did it take to double from 3 billion to 6 billion
With a 2009 rate of natural increase in Mexico of 1.13%, its population would be expected to double in ~61 years.
Depends on how much power thirst you drink.
100 years
mankind's don't need time to double the size. becauze they are very fast in doubling the population.
The Rule of 70 is a quick way to estimate how long it takes for a population to double in size based on its growth rate. To use the Rule of 70, divide 70 by the annual growth rate of the population. The result will give you approximately the number of years it takes for the population to double.
Sadly, the way babies are being continually aborted, not going to happen.
a second
African countries take longer to "double time" meaninh the time it takes for a county's population to double its number
The worlds population was 3.3 billion in 1965, it is now 6.7 billion so it that instance of doubling took 34 years .
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).
about a quarter of a second.