Shiphylanna Shiphylanna

14-04-2016
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How old is a rock if it contains 6.2% of its original 14carbon?
A. 780,000,000 years
B. 40,300,000 years
C. 21,480 years

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14-04-2016

Hello! The answer is C. about 21,480 years. Hope this helps. :)

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