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Growth Rate and the Rule of 70

Growth Rate and the Rule of 70. G lobal G rowth r ate. Factors: Crude Birth Rate (CBR) and Crude Death Rate (CDR). N ational G rowth r ate. Factors: Crude Birth Rate (CBR), Crude Death Rate (CDR), immigration, emigration. T he R ule of 70. Used to calculate population’s doubling time.

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Growth Rate and the Rule of 70

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  1. Growth Rateandthe Rule of 70

  2. Global Growth rate • Factors: Crude Birth Rate (CBR) and Crude Death Rate (CDR)

  3. National Growth rate • Factors: Crude Birth Rate (CBR), Crude Death Rate (CDR), immigration, emigration

  4. The Rule of 70 • Used to calculate population’s doubling time

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