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Archeologists have found fossil remains of some of the first land animals in layer c. it has been suggested that c-14 be used to data the fossils. some archeologists have objected and suggested that it would be best to use u-238 or pb-206 to date the rock layer instead. why would they make such a suggestion?

User HeavenCore
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Because it was so back in the day that is the right suggestion
User Rcrogers
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