Question

the diagram shows horizontal rock layers. which statement is accurate?
layer c is younger than layer a.
layer d has an older relative age than layer c.
if a geologic event tilted these layers, layer b would no longer be the oldest.
it is possible to determine the absolute age of layer c with the information given.

Explanation:

• For "Layer C is younger than layer A": According to the principle of superposition in geology (in undisturbed sedimentary rock layers, the lower layers are older), layer A is below layer C, so layer C is younger than layer A.
• For "Layer D has an older relative age than layer C": By the principle of superposition, layer C is below layer D, so layer C is older than layer D.
• For "If a geologic event tilted these layers, layer B would no longer be the oldest": Tilt - ing does not change the relative age order determined by superposition. Layer A is still the oldest.
• For "It is possible to determine the absolute age of layer C with the information given": The diagram only shows relative positions (using super - position principle for relative age), no radiometric dating or other data for absolute age.

Answer:

Layer C is younger than layer A.