Population pyramids

Today in human geography class we watch a video called “Population pyramids: Powerful predictors of the future”. It talk about the population in China, Russia, Nigeria, Rwanda, Canada, Japan and United State. Each country have a population pyramid. In the population pyramid, male is in one side and female is in other side. The population number is show each five year age interval. Starting in zero to four and continue up to 100 and uup.This is about age and gender distribution. Some country have many young people and some country have many old people.

The population is developed countries are in a slowly speed. And in developing country, the population growing speed are very fast.