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History, 26.08.2019 03:50 ericahale3971

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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How old is a rock if it contains 6.2% of its original 14carbon?
a. 780,000,000 years
b....
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