Your measurements indicate that a fossilized skull you unearthed has a \( { }^{14} \mathrm{C}-t ...

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Your measurements indicate that a fossilized skull you unearthed has a \( { }^{14} \mathrm{C}-t \mathrm{o}-{ }^{12} \mathrm{C} \) ratio about one-sixteenth that of the atmosphere. What is the approximate age of the skull?
(a) 22,400 years
(b) 11,200 years
(c) 5600 years
(d) 200,000 years
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