Question

which example best describes how sedimentary rock forms?
deep below the earths surface rocks melt. the molten rock solidifies when it reaches the surface.
wind breaks down a rock into smaller pieces. over time, the pieces are compacted to form a different rock.
magma cools to form rocks.
deep below the earths surface, heat and pressure cause a rock to transform to a different rock without melting it.

Explanation:

Sedimentary rocks form from the compaction and cementation of sediments. Wind breaking down a rock into smaller pieces and those pieces being compacted to form a different rock is the process of sediment - rock formation. The first option describes igneous rock formation (molten rock solidifying), the third option also describes igneous rock formation (magma cooling), and the fourth option describes metamorphic rock formation (transformation due to heat and pressure without melting).

Answer:

Wind breaks down a rock into smaller pieces. Over time, the pieces are compacted to form a different rock.