Replacement level fertility:Replacement level fertility is the total fertility rate needed for a population to replace itself without any increase or decrease. It is typically slightly above two children per woman.
Birth rate:The birth rate represents the number of live births per 1,000 people in a population within a specific time period.
Demographic transition: The demographic transition refers to the process of change in population from high birth and death rates to low birth and death rates as countries develop economically and socially.