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ARC-Easy / Mercury_416355 / Imprints of the shells of ocean clams are often found in the rocks of the…

Problem

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question

Imprints of the shells of ocean clams are often found in the rocks of the Appalachian Mountains. What do these imprint fossils most likely indicate?

choices

  • These mountains were once under the ocean.
  • These mountains once had a more rainy climate.
  • Mountain river clams evolved from ocean clams.
  • Ocean clams evolved from mountain river clams.

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