When a population experiences zero growth?

Answer 1

There are different versions of this. One version of zero growth is when the population is at replacement levels. This is actually difficult to calculate exactly because of changing child mortality rates, changes in marriage and death rates, and so on. Another version is when the population dies off -- zero growth!

Answer 2

Population is said to experience zero growth rate when the Death Rate is equal to Birth Rate. For instance, the chief doctor recently confirmed that the number of people that die in a year at Malete is equal to the number of new babies delivered.
Algebraically, given that the population of Malete is 6000 and the total number of death and birth recorded in year 20012 is 2000 and 2000 respectively.

The rate of growth is thus 2000 minus 2000 divided by 6000 multiply by 100 equal 0%