GEOLOGY

Detailed explanation-1: -These particles and grains have become solid rock by the processes of compaction or cementation of sediments. Some clastic rocks are conglomerate, shale, breccia, gray and red sandstone, siltstone, and graywacke.

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

Detailed explanation-3: -A type of rock which is made as a result of cementation and compaction of sediment grains under pressure over a long period of time is called sedimentary rocks.

Detailed explanation-4: -Clastic sedimentary rocks are made from rock and mineral fragments that are compressed and cemented together to make a rock. Chemical sedimentary rocks precipitate from a fluid. Sometimes the precipitation is aided by organisms.

Detailed explanation-5: -Sedimentary rocks are the product of 1) weathering of preexisting rocks, 2) transport of the weathering products, 3) deposition of the material, followed by 4) compaction, and 5) cementation of the sediment to form a rock. The latter two steps are called lithification.