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Question : [A]: Radioactive carbon ^(14)Cmethod is quite accurate for relatively recent fossils, not older than 40,000 years.[R]: It was discovered by Libby.

Answer»

If both A and R are true and R is the correct explanation of A
If both A and R are true but R is not the correct explanation of A
If A is true and R is FALSE
If both A and R are false

ANSWER :B


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