Question

read the text. then answer the question. ocean sediment was deposited below a coral reef. the sediment was made mostly of the bodies of marine organisms, such as clams. over thousands of years, the sea level fell. the area with the coral reef became part of a beach. sand was deposited by waves on top of the older sediment. which rock sequence is more likely to form from the sediment layers described above?

Explanation:

Limestone is a sedimentary rock formed from the accumulation of marine organisms' remains (like clams in the ocean sediment). Sandstone forms from sand deposition (by waves on the beach). The principle of superposition states that in undisturbed sedimentary layers, younger layers are on top of older layers. The ocean sediment (which becomes limestone) is older, and the sand (which becomes sandstone) is younger. Shale is formed from fine - grained clay - like sediments, which is not described in the text (the text mentions sediment from marine organisms and sand).

Answer:

The rock sequence with sandstone (younger) on top of limestone (older) is the correct one.