The formula used to calculate the period of time it takes a population to double is 70 divided by:
A)crude birth rate
B)current rate of growth
C)fertility
D)crude death rate
E)rate of population decline

Question

Quizplus · Accepted Answer

The formula used to calculate the period of time it takes a population to double is 70 divided by the current rate of growth. This is known as the "rule of 70," and is a simplified way to estimate doubling time based on the assumption of constant exponential growth.

The Formula Used to Calculate the Period of Time It