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5 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Explain how birth rate, death rate, natural increase and how the population pyramid of stages 1 - stage 5 look. |
Stage 1: Very high birth rate and very high death rate - low natural increase and very short but wide bottomed pyramid. Stage 2: V. high birth rate and high death rate - very high natural increase and more equilateral triangle (still short) shape. Stage 3: Falling birth rate and death rate, rising natural increase and curvy triangle. Stage 4: Low birth rate and low death rate, stable/low natural increase and long thin shape. Stage 5: v low birth rate, higher than b.r death rate and negative increase - upside down conical flask. |
As countries get more developed they have more access to contraception, medicine and safety advice. |
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How do you calculate natural increase? |
BIRTH RATE - DEATH RATE |
find the difference... |
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On a population pyramid: - What is the width of the base? - What is the height of the pyramid? - What is the angle of the slope? |
- Birth rate - Life expectancy - Death rate |
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Why does population begin to rise fast in stage 2? |
Improvements in medicine and housing mean that the death rate begins to fall. |
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Give a named country example for each 5 stages |
1 = Amazonian tribe 2 = Mali 3 = Morocco 4 = UK 5 = Germany |
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