12/2/19- demographic transition packet

Today in human geography Mr. Schick told us about all the stuff we have coming up in class, leading to exams. I'll absent on the 12th and 13th which is when we are writing our essay as part of the exam so I'll have to email him about that later.  He gave us a packet to read and highlight about demographic transition.  I hate reading so I don't know how but I didn't space out at all when I read that.  It talked about the four stages that countries go through in their population change.  The first is a high crude birth and death rate and a low NIR.  The next stage is a high CBR, rapidly declining CDR and a high NIR.  This happens when some sort of a revolution occurs, for Europe and North America it was the Industrial Revolution and for Africa, Asia, and Latin America it was the medical revolution.  Stage three has a rapidly declining CBR, a moderately declining CDR and a moderate NIR.  This happens when the CBR drops dramatically while the CDR continues to drop but at a slower rate than before, the CBR is still greater than the CDR though.  The last stage is when theres a low CBR, low or slightly increasing CDR and a zero or negative NIR.  This occurs when there are society changes.