Question

read the text. then answer the question.
a river deposited sand, mud, and pebbles along the riverbed. over a long period of time, the river dried up and the area became a desert. the wind deposited sand on top of the older sediment.
which rock sequence is more likely to form from the sediment layers described above?
(image of two rock layer diagrams: first with conglomerate (younger) over sandstone (older); second with sandstone (younger) over conglomerate (older))

Explanation:

Step1: Identify sediment order

The river first deposits sand, mud, pebbles (forming conglomerate over time), then wind deposits sand (forming sandstone later). So older layer is conglomerate, younger is sandstone.

Step2: Match with rock sequences

Check which sequence has older layer as conglomerate and younger as sandstone. The second sequence (bottom) shows sandstone (younger) on top of conglomerate (older).

Answer:

The bottom rock sequence (sandstone on top of conglomerate)