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The principle that states the undisturbed rock sequence has the oldest rocks on the bottom is known as A. relative age dating. B. original juxtaposition. C. superposition. D. original parallelism.

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Worsfoldcourtney

The correct answer is c. superposition. This principle states that each layer of sedientary rock in a region that is not disturbed by plate tectonics is younger than to sequence beneath it and older than the sequence above it. This principle was coined by Steno to interpret sedimentary rock strata.

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