Question

How do layers B and D compare in age? If rock layers between B and D have eroded away, what is the boundary between B and D called?

Answer 1

correct ty

Step-by-step explanation:

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Answer 2

Rock layer D is older than rock layer B. The boundary between B and D is called an unconformity also. The geologist could use radioactive dating to determine the absolute age of F; then by the law of superposition, A must be at least as old as F, which lies above A.