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Population Pyramids

Population Pyramids. What They Mean. Population Pyramids. What is it? Graphical illustration that shows the amount of people per age group within a country, and is usually in pyramid form when the population is growing. Rapid Growth Populations. Broad Base

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Population Pyramids

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  1. Population Pyramids What They Mean

  2. Population Pyramids • What is it? • Graphical illustration that shows the amount of people per age group within a country, and is usually in pyramid form when the population is growing.

  3. Rapid Growth Populations • Broad Base • Basically even distribution between male and female • High fertility rates • Low average life expectancy • Usually found in under developed or developing nations

  4. Rapid Growth Populations Rapid Growth

  5. Slow Growth Populations • Pyramid shape, with a smaller base • Can easily fall back into rapid growth • Declining fertility and mortality rates • Beginnings of better education, medical, and working condition

  6. Dominican Republic Slow Growth

  7. Zero Population Growth • Shapeis almost column like • Population that is unchanging (not growing or shrinking) • Birth Rate and Death Rate are equal • Most commonly found in areas that have stable education, health care and government. • Most often a developed country

  8. United States 2017 Zero Growth

  9. Negative Population Growth • Often an inverted triangle • More deaths than births • Caring for the elderly is hard • Often ‘self imposed’ by high costs of living • Can be due to natural events like famine or war • Can cause long term problems for countries

  10. Cuba- 2016 Negative Growth

  11. Stages of Population Change • As countries develop, they go from one stage to the next, or even back a step. • Not all countries want a negative population, so they actively seek ways to maintain their healthy populations while not overpopulating.

  12. Stages of Population Change 1. 2. Rapid Growth Slow Growth 3. 4. Stable Growth Negative Growth

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