The age pyramid with broad base indicates:

The age pyramid geometrically represents the proportions of different age groups in population. The triangular shape of age pyramid represents the expanding growth status of human population. Base of the pyramid represent the pre reproductive individuals or young individuals. more the broader the stage, more the number of individuals at that stage. Related Theory Age distribution depends upon the natality and mortality and determines the population growth. With regard to age distribution, there are three kinds of population.