Finding Population

Todays class was all about population. We went on a website to find different populations of different countries. We were able to learn different things about the populations and how things were different between countries and why. We did a contest where he'd ask questions on countries and we had to answer quickly. It was weird learning about the countries and how theres a country with a population of like 48, thats like 2 classes put together which isn't a lot at all! The populations are all changing because of migration and people dying and being born.  There is a point where the population can be the same but if its lower then that point then its dropping but if its higher then that point then its rising. Population is changing a lot over the years!