discussion about population

Today in human geo we started the topic of Population and Settlement on Earth. There is over 7.6 billion people on Earth right now. The people keep increasing by over 73 million per year. 90% of our population growth happens in East Asia and Latin America. In class today we also talked about how in China you can only have one child to a family to prevent overpopulation and if you have any more than that, then you have to pay extra money for it. The average number of years to be lived by a group of people born in the same year is called the life expectancy.