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    Exam 23: Evolutionary Patterns: Phylogeny and Fossils
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    The Half-Life of <Sup>14</sup>C Is 5730 Years
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The Half-Life of 14C Is 5730 Years

Question 85

Question 85

Multiple Choice

The half-life of 14C is 5730 years. If a sample contained 100% 14C and 0% 14N at a point in time 17,190 years ago, then what percentage of 14C would it contain today?


A) 12.5%
B) 25%
C) 50%
D) 75%
E) 100%

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