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QUESTION
HELP ME....VERY EASY 60 points...if a scientist found a rock layer that contained an index fossil that we know dates to 25 million years ago, what does this tell us about the age of the rock?
HELP ME....VERY EASY 60 points...if a scientist found a rock layer that contained an index fossil that we know dates to 25 million years ago, what does this tell us about the age of the rock?
