Demographic Transition Model Essay - 1439 Words

Part A) Demographic Transition Model 1) †¢ In Stage one, birth and death rates high, but have a low total population due to the high death rates. †¢ In Stage two, the birth rates take a very minor dip in the graph, but maintains its birth rate. The death rate is decreasing due to increasing amounts of knowledge towards medicine as time goes by. The total population is increasing due to the death rates decreasing. †¢ In Stage three, the total population is increasing at a greater rate than in the previous stages. The birth rates and death rates are decreasing because of many factors in society, but the most prevalent factor is due to the increase use of birth control. †¢ In Stage four, the population is increasing, and is soon approaching†¦show more content†¦This Pyramid is similar to Stable Pyramids, but has a lower birth and death rate. Contracting Pyramids have slightly longer life expectancies, and has an older average population in comparison to the Stable Pyramid. Part D - Population Distribution, Consumption and Sustainability a) At the current world population growth rate, I believe there won t be sufficient resource to help support this rate due to limited resources such as water, farming area, housing, etc with our current technology. However, I do believe that after a breakthrough in technology, there would be more population growth in the world, but would slowly come to a point where it simply can’t sustain any more and this cycle would go on until technology stops advancing. It is difficult to maintain this at a constant rate without decreases at any point with the expanding number of people while Earth has only finite resources. Theoretically though, if we were to able to constantly increase efficiency with our land space, and colonize other planets, the population of the human species would always increase. b) The world population is not equally distributed. There are few countries that have high population densities. Places situated on the coast have good climate conditions for vegetation, which is the reason why there are usually high population densities situated on the coastline in population density geographical maps. c) There are many key things that determine population density in a certain area.Show MoreRelatedDemographic Transition Model Essay1368 Words   |  6 PagesDemographic Transition Model The Demographic Transition Model is defined as the historical birth and death rates throughout the years. In the late 1700s, death percentages decreased due to the fact of the rise of new technology and the change of living habits such as sanitation and a healthier way of living. The change that had occurred had brought forth global observation; the reason being is that life expectancy was becoming longer. 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