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OpenStudy (anonymous):
The half – life of Carbon-14 is 5715 years. Find the rate of decay for Carbon –14. Bones of a prehistoric man were discovered in 1985 and contained 5% of the original amount of carbon – 14. How long ago did the man die? Answers: (A) 285 years ago (B) 1084 years ago (C)5776 years ago (D) 24,964 years ago .
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