What are the main characteristics of the age pyramids of developed countries?
In a stabilized human population the age pyramid has a narrower base as the reproduction rate is not so high. The adult age ranges are normally wider than the infantile ranges showing that in practice there is no population growth. There are a proportionally high number of older individuals meaning that the life excellence is elevated and the population has access to health services and good nutrition. These are methods of the age pyramids of developed countries.