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.
4) Which rock sequence is more likely to form from the sediment layers described above?
younger
older
sandstone
shale
younger
sandstone
older
limestone