👉 Sedimentary rocks are composed of sedimentary materials that have been deposited over time by water. These materials can vary in composition and structure, but they often consist of layers of sand, silt, clay, and other sediments. Sediment is the basic building block of all rock formations, and it plays a crucial role in shaping the landscape on which we live. Sedimentary rocks typically have one or more parent rocks that are deposited over time by water. These rocks can be subterr