Question

read the text. then answer the question.
sand was deposited by waves on a beach. the sand built up in layers.
over time, the climate grew colder, and the sea level fell. a glacier formed close to
the area that was once a beach. sand, mud, and boulders were deposited at the end
of the glacier, on top of the sand.
eventually, the glacier melted, and the sea level began to rise. the area was a
shallow part of the ocean for a few thousand years and silt was deposited. then, as
the area became a deep part of the ocean, a layer of mud was deposited.
a rock sequence formed from the sediment layers described above. put the following rocks in
order to show what this rock sequence probably looked like.
younger
sandstone
conglomerate
siltstone
shale

Explanation:

Sedimentary rocks form in layers where older layers are below younger ones. The sequence of deposition is: beach sand (sandstone) → glacial deposits (conglomerate, from sand/mud/boulders) → shallow ocean silt (siltstone) → deep ocean mud (shale). Thus, the oldest layer is sandstone (bottom), followed by conglomerate, siltstone, and the youngest layer shale (top).

Answer:

From bottom (oldest) to top (youngest): sandstone, conglomerate, siltstone, shale
From top (youngest) to bottom (oldest): shale, siltstone, conglomerate, sandstone