Sedimentary rocks are a type of rock formed from the accumulation and solidification of sediments, such as sand, mud, and organic materials, over long periods of time. They are typically found in layers or strata, and often contain fossils and other geological clues about the Earth's history. Sedimentary rocks are important for understanding past environments, climate conditions, and geological events, and are commonly used in industries such as construction, agriculture, and energy production. The study of sedimentary rocks involves analyzing their composition, texture, and structure to interpret their formation and history.