Barrons AP Environmental Science

(Marvins-Underground-K-12) #1

  1. (D) To find the doubling time of a population at any given annual rate of
    growth, divide 72 by the annual growth rate (in this case 1.2): 72 ÷ 1.2 = 60
    years. 1994 + 60 = 2054.

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