the diagram shows layers of rock that have been disturbed. which layer of rock is the oldest? layer a…

the diagram shows layers of rock that have been disturbed. which layer of rock is the oldest? layer a because other layers were formed in it. layer b because it is under layers c and d. layer d because it is the least eroded. layer f because it is on the top.
Answer
Answer:
Layer A because other layers were formed in it.
Explanation:
Step1: Apply principle of superposition
In undisturbed rock - layer sequences, older layers are at the bottom. But here the layers are disturbed. However, layer A is the base - layer upon which other layers (B, C, D, E, F) were formed, making it the oldest.