Zero Population Growth is Achieved When ____

Question

Zero population growth is achieved when ____.  
A) a population starts to decline
B) emigration and immigration are balanced, and the number of births equals the number of deaths
C) births exceed deaths
D) deaths exceed births
E) emigration and immigration are prevented

Accepted Answer

Zero population growth occurs when the birth rate equals the death rate and there is no net immigration or emigration. This means that the population size remains constant over time, neither increasing nor decreasing. Therefore, option B is the correct choice.