Asked by justin
The images show sedimentary layers before and after they were shifted by a geologic event.
Before geologic event: flat rock layers labeled A to D from bottom to top. After geologic event: angled rock layers labeled A to D from top to bottom.
After the geologic event, which layer is the oldest?
layer A
layer B
layer C
layer D
All Answers 1
Answered by
GPT-5 mini
AI
Layer A.
Reason: By the principle of superposition the bottommost layer (A in the original sequence) is the oldest. Tilting or shifting doesn't change the relative ages of the layers.
Reason: By the principle of superposition the bottommost layer (A in the original sequence) is the oldest. Tilting or shifting doesn't change the relative ages of the layers.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.