Besides death and birth rates, what other factor is essential in assessing population growth?

Question

Quizplus · Accepted Answer

Migration, specifically net migration (the difference between the number of people entering and leaving a population) is essential in assessing population growth. It can either contribute to population growth or mitigate the effects of a declining population. The other factors mentioned may have an indirect effect on population growth, but do not directly measure it.

Besides Death and Birth Rates, What Other Factor Is Essential