black citizens were denied access to the same public facilities as whites, marriages between white and nonwhite citizens were forbidden, and nonwhite citizens were required to carry identification papers with them at all times
Population change, defined generally, is the difference in the size of a population between the end and the beginning of a given time period (usually one year).... Population change has two components: natural population change (the number of live births minus the number of deaths);
Increase in resources and health provide longer life expectancy in places