GEOLOGY

Detailed explanation-1: -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. Organic sedimentary rocks are made from the bodies of plants and/or animals.

Detailed explanation-2: -Common sedimentary rocks include sandstone, limestone, and shale. These rocks often start as sediments carried in rivers and deposited in lakes and oceans.

Detailed explanation-3: -Thus, there are 4 major types of sedimentary rocks: Clastic Sedimentary Rocks, Chemical Sedimentary Rocks, Biochemical Sedimentary Rocks, and Organic Sedimentary Rocks.

Detailed explanation-4: -Chemical sedimentary rocks are formed by precipitation of minerals from water or by alteration of already existing material in place. The most common of these rocks include evaporites, chert, and some varieties of carbonate rocks (limestones and dolostones).

Detailed explanation-5: -Biochemical and organic sediments are clastic in the sense that they are made from pieces of organic material that are deposited, buried, and lithified; however, they are usually classified as being chemically produced.