What does the "rule of 70" apply to?
A) how long it takes a population to double in size
B) death rates during a famine
C) migration from one continent to another
D) economic prosperity in a former colony
E) cartograms of world population

Question

Quizplus · Accepted Answer

The "rule of 70" is commonly used in demography and economics to estimate how long it takes for a population or an economy to double in size. It states that if the annual growth rate is divided into 70, the result is the approximate number of years it takes for the population or the economy to double.

What Does the "Rule of 70" Apply To