Physics, 30.06.2019 01:40 vanitycarraway2000

Suppose you are examining layers of sedimentary rock. in one layer, you discover remains of an extinct relative of the polar bear. in a deeper layer, you discover the fossil of an extinct alligator. what can you hypothesize about changes over time in this area's environment?

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Suppose you are examining layers of sedimentary rock. in one layer, you discover remains of an extin...

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