Population momentum occurs because of a relatively high concentration of people in the pre-childbearing age and childbearing years. As these young people grow older and move through their reproductive years, the greater number of births will exceed the the number of deaths in the older populations, and so the population will continue to grow.
Source: IB Geography Textbook (Nagle)
Examine the differences of population momentum in Bangladesh, Uganda and Germany.
Distinguish between a population projection and population momentum. (2 marks)