Question

Sandstone is a sedimentary rock. Which two processes cause sand particles to form sandstone?

cementation and cooling
compaction and cementation
cooling and erosion
erosion and heating

Answer 1

The two processes that cause sand particles to form sandstone are **compaction and cementation**.

Compaction occurs as sediments are compressed under the weight of overlying materials, while cementation involves the precipitation of minerals within the spaces between the sand particles, effectively binding them together to form solid rock.