To determine the order of rock layers from oldest to most recent, we typically refer to the principles of stratigraphy, such as the Law of Superposition (younger layers are deposited on top of older ones) and the concept that intrusions are younger than the layers they alter.
Here is a general step-by-step reasoning considering a hypothetical cross-section of rock layers A, B, C, D, E, along with an intrusion layer (possibly referred to as A, D, or others in response options):
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Identify the intrusion: Intrusions are typically younger than the rock layers they cut through. If there is an intrusion, it would be placed after the layers it intersects.
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Apply the Law of Superposition: The layers that are lower in the sequence are the oldest, and those that are higher are the most recent.
Now, examining each of the responses you provided:
A: E, D, C, B, AE, D, C, B, A
- This does not follow a clear order and seems repetitive.
B: D, C, B, E, AD, C, B, E, A
- This also does not depict a clear progression of layers.
C: A, E, B, C, DA, E, B, C, D
- This option seems to present a mixed order and includes instances of layering that are not standard.
D: D, E, C, B, A
- This option provides a straightforward listing but does not incorporate time relations properly.
Based on a traditional geological perspective for layers (and assuming 'AD' is a single intrusion): Without the actual diagram, the best standard approach would be to go with B or D, where one should logically follow deposition and intrusion processes specified. However, D appears to follow more closely a straightforward order.
D (D, E, C, B, A) makes the most sense as a reasonable order from oldest to most recent without further complexity of overlaps or false depths.
Please consider specific rules or additional details from your cross-section to confirm the nuance between the choices!