Like this video, subscribe to our channel, and hit the notification bell to get notified when we go live with more sessions for AP Human Geography. In this video, The Human Geo Guy, Danny Sanchez, reviews the Demographic Transition Model and Population Pyramids. Check out Danny's Instagram Account: @thehumangeoguy Marco Learning is committed to providing the best, most complete resources for AP students, their parents, and teachers. Experienced in the classroom, at the kitchen table, and within the test preparation industry, our teachers bring decades of AP expertise to you, online. http://www.marcolearning.com/