The Population Pyramid

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Today in class we looked at the video we saw yesterday about the population pyramid. A population pyramid is a graph that shows the number of people in five year intervals. One side of this graph shows the male population while the other shows females. This graph has gap in the middle where the ages are shown, which starts at age 0 and ends at 100 years and above. A wide base shows that a population's growing quickly, and shows a pre-industrial age. A graph that has growth in the middle shows that a population will grow slowly and an industrial age. The last one, which has growth in the post reproductive years shows a declining population, and also a post-industrial age. That's all for now, see you soon!

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