11/29/17

Today in human geo we watched a Ted talk. The Ted talk video was about population pyramids and it covered a lot of stuff. First off a population pyramid is a chart that tracks a countries male and female population. It also tracks birth rates death rates and can predict a countries future population pretty accurately. We talked about Demographic transition today and thats when a country starts out as a pre industrial society , then moves to and industrial society, and lats moves to a post industrial society. This changes many things about people. When a country changes to an industrial society its changes its population a lot. Life expectancy goes up because The people working in the factories get health care. Then child mortality rates goes down because not as many kids are dyeing because they are healthier.