Select one of the following Graphit activities to complete: Media: Age Pyramids

Question

Select one of the following Graphit activities to complete: Media: Age Pyramids and Population Growth (Graphit) answering any internally prompted question as you proceed through until the tutorial is completed. Please disregard any prompts to answer questions outside of the tutorial. Media: Animal Food Production Efficiency and Food Policy (Graphit) answering any internally prompted question as you proceed through until the tutorial is completed. Please disregard any prompts to answer questions outside of the tutorial. Media: Global Oil Production and the Hubbert Curve (Graphit) answering any internally prompted question as you proceed through until the tutorial is completed. Please disregard any prompts to answer questions outside of the tutorial. View the media: Water Pollution from Nitrates (Activity) Write a 400 to 500 word critical summary of what you learned in the two activities (the media activity that you chose and the Water Pollution from Nitrates activity). Be sure to discuss the quantitative nature of the Graphit activity.

Explanation / Answer

Age pyramids and population growth:

The different stages of the population pyramid that tells about the future population in general are:

Stage 1: It is a expansive stage, concave sides for both male and female. Have high birth rate and high death rate with short life expectancy. ex: Niger

Stage 2: Expansive stage straight sides for both male and female. High birth rate and falling death rate with slightly longer life expectancy. Fall in death rate result in more people living in middle age. Haiti

Stage 3: Stationary stage, convex sides. Declining birth rate and low death rate with long life expectancy. Increasing proportion of population is in the 65+ age group. Morocco

Stage 4: Contractive stage and convex sides. Very low birth rate and low death rate with longer life expectancy. The population has higher dependency ratio. ex: Australia

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