A 1-Gram Sample of Wood Is Taken from an Ancient

question 12

Multiple Choice

A 1-gram sample of wood is taken from an ancient site. If the Carbon-14 activity of the sample is 12.5% that of present-day organic material, what is the age of the wood? (T_1/2 for ¹⁴C is 5730 years.)

• A) 8600 years
• B) 4460 years
• C) 11,500 years
• D) 17,200 years

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