Answer :
The limestone described is sedimentary limestone, a rock formed from mineral calcium carbonate and remnants of marine organisms. It is classified as sedimentary, not metamorphic or igneous. Sample S1 limestone can be organic or chemical/biochemical sedimentary rock. Hence option C is correct.
The type of limestone described in the context of "Limestone: Rock Uses, Formation, Composition, Pictures" is sedimentary limestone. Sedimentary rocks, including limestone, are made from fragments of other rocks or the shells of living organisms that are deposited by wind or water and cemented together. Limestone is specifically a sedimentary rock made from the mineral calcium carbonate (CaCO3), often formed from the remains of marine organisms. Limestone can be categorized into types such as biogenic limestone, oolitic limestone, and fossiliferous limestone, which all fall under the broader category of sedimentary rocks.
Considering Sample S1, which is an example of limestone, we could classify it as a b. Organic Sedimentary Rock if it contains visible shells of marine organisms, or as a c. Chemical or Biochemical Sedimentary Rock depending on its formation through chemical precipitation. Hence option C is correct.
