A population with a growth rate equal to zero is

A population with a growth rate equal to zero is unchanging (zero population growth)

Explanation:

Zero population growth can be described as a scenario in which the number of death rates in a country is equal to the birth rate of a country. As the population of countries is increasing enormously, many countries or sociologists consider zero population growth to be the social aim of society. This is because if the death rate and birth rate are not maintained, then this can lead to serious critical situations for a country.

in an absolute  monarchy, the  monarchrules as an autocrat, with absolutepower  over the state and government — for example, the right to rule by decree, promulgate laws, and impose punishments. the  monarch isnominally sovereign but the electorate, through their legislature, exercise political sovereignty.