GEOLOGY

Detailed explanation-1: -Organic sedimentary rocks are formed as a result of the decomposition of dead plants and animals. It contains fossils and some examples include chalk, limestone, coal, and dolomite.

Detailed explanation-2: -Organic sedimentary rocks form from the accumulation and lithification of organic debris, such as leaves, roots, and other plant or animal material. Rocks that were once swampy sediments or peat beds contain carbon and are black, soft, and fossiliferous.

Detailed explanation-3: -Rondi: Let’s meet Limestone. Limestone is a sedimentary rock made almost entirely of fossils. Fossils are the remains of ancient plants and animals, like an imprint in a rock or actual bones and shells that have turned into rock.

Detailed explanation-4: -Sedimentary rocks are formed from layers of sand, silt, dead plants, and animal skeletons.

Detailed explanation-5: -Dead and decayed residue of plants and animals is called humus.