Final answer:
The net reproductive rate (R0) is equal to the replacement fertility rate, which is the fertility rate at which women average only enough children to replace themselves and their partner in the population.
Step-by-step explanation:
The net reproductive rate (R0) is equal to the replacement fertility rate, which is the fertility rate at which women average only enough children to replace themselves and their partner in the population. It ranges from just over 2 to almost 3 children per woman, depending on the death rate. If a fertility rate for a given country is less than 2.1, the population of that country is in decline, unless there is significant immigration. A fertility rate greater than 2.1 indicates that the country's population is increasing.