More notes on the Population Pyramid

We watched the video again that I watched yesterday. This time we stopped more and explained in more detail what the video what saying. In my last blog I said that each row was four years but it is actually five. On the Population Pyramid men are always on the left and women are always on the right. I will now describe the Demographic Transition. If a one of the graphs is a triangle then the population will grow quickly. It is considered pre- industrialized. If it looks like a diamond but the point on the sides are near the bottom then the population will grow slowly. It is considered industrialized. If it looks like a diamond but the side points are at the top then the population will decline. It is then considered post industrialized. The triangle means is will grow faster because if they are pre- industrialized then they don't have birth control so they have more kids. The industrialized grows slowly because parents only have about two children which is just enough to replace the parents. The post industrialized has more older people than younger so they aren't replacing the people that are dying with babies. That is how they will decrease in population.