GEOLOGY

Detailed explanation-1: -Sandstone is a sedimentary rock formed by the compacting and cementing of sand grains over thousands or millions of years. The sand grains often are composed of the minerals quartz or feldspar that were worn off other rocks and ground down into pebbles. Therefore, sandstone is the correct answer.

Detailed explanation-2: -Conglomerate = clastic; composed of silicate; formed by compaction and cementation of LARGE land derived sediments.

Detailed explanation-3: -This process of compacting and cementing sediment forms sedimentary rock.

Detailed explanation-4: -which sedimentary rock would be formed by the compaction and cementation of rounded pebbles? answer-C) Conglomerates form when rocks are deposited, compacted, and cemented together.

Detailed explanation-5: -D) siltstone 1. Which sedimentary rock would be formed by the compaction and cementation of particles 1.5 centimeters in diameter?