Growth of countries

Today we learned about a population pyramid and all the different types of them. We use population pyramids to analyze growth( or decline) of fertility, mortality, and migration in cities. Males are always on the left side of the charts. Women usually are the ones who've longer in the life span. The 3 basic shapes are The x-mas tree which is the shape of a triangle, The box which is a rectangle, and The cup which literally looks like a cup. This was very cool to learn because some of these countries aren't even fully developed and cant keep a stable economy. This shows all of the growing and decreasing of the populations. You can learn whether they are a strong economy or not because the shapes show. Theses shapes are shown at the growth of people. When the growth is one of these shapes it helps us know when they were progressing.  It is also halloween.