THE WORLD POPULATION GROWTH
Birth rate: the number of live births per 1000 people of all ages in one year. Death rate: the number of deaths per 1000 people in the population in a year. Natural increase: is the crude birth rate minus the crude death rate of a population. Infant mortality rate: the death rate during the first year of life. Life expectancy : the statistically determined average number of years of life remaining after a specified age for a given groupof individuals. Birth control: Voluntary prevention of conception by a man or a woman through the use of contraceptive techniques. Dependent population: those who rely on the working population for support e.g. the young and elderly. Dependency ratio: the ratio between those of working age and those of non-working age. Family planning: using contraception to control the size of your family. Population piramids: a graph which shows the age and sex structure of a place. Age-gender structures: the relative percentages ...