Population Pyramids

In Human Geo today we looked at different Population Pyramids. The three Pyramids that we looked at were the most common ones. They are Christmas tree, the Box, and The cup. We use Population Pyramids to analyze growth (or decline) of fertility, mortality and migration in cities. There are two sides of the Pyramid. Males are usually on the left from the middle and females are on the right of the middle. The Christmas tree Pyramid represents a developing nation. If it looks like a Christmas tree then the country most likely has slow growth rates, high birth rates, and short life expectancy. Some examples of developing nations are Namibia and Bangladesh. The second type of Pyramid is The box. If your Pyramid looks like a box then it is a devolped nation and has slow growth. If it looks like a box then it has low infant mortality, slow population growth and long life expectancy. Some examples of a box pyramid country is Sweden and the United States. The last type of Population Pyramid is the cup. If your population graph looks like a cup then it is devolped but has negative growth. The country also has a low birth rate, shrinking population and long life expectancy. Some examples of a cup Population Pyramid are Italy and Japan.