demographic transition day 3

Today in class we watched a video about demographic transition. We learned more about the four stages and we heard some of the vocabulary that we have been learning for the past few units. Some of the vocabulary is crude birth rate, crude death rate and rate of natural increase. 

We also have a test on Monday. I don't know how I will do. I think that as long as I study and make sure that I know everything about the different stages of demographic transition, I should get a good grade.