Q. What is the typical conformation of the age pyramids of underdeveloped countries?

The age pyramids of the peripheral countries or the underdeveloped countries have characteristics related to the poverty of such populations, with a wider base and narrow apex. The basic age range, if much wider than the other levels, point towards a high birth rate. The levels just above the basic may present an impressive reduction in poorer populations due to infant mortality. The Ranges that represent the youth are also wide showing future pressure on job and habitation needs. The widths of the rectangles reduce as age increases to the apex that represents the elderly, demonstrating difficult life conditions, precarious health services and low life expectancy.