Which Rocks term is correctly associated with identifying feature: “often shows bedding layers”, and also with “commonly used as a building stone”?

Correct Answer: Option C — Sandstone. Sandstone is correct because it is often shows bedding layers. Sandstone is also associated with commonly used as a building stone. A further identifying fact is that Sandstone is often shows bedding layers. Another useful fact is that Sandstone is associated with commonly used as a building stone. Why the other options are incorrect: Option A — Limestone: It is reacts with dilute acid and is associated with a major raw material for cement; those are the identifying facts of Limestone. Option B — Shale: It is splits into thin layers called fissility and is associated with can metamorphose into slate; those are the identifying facts of Shale. Option D — Marble: It is has interlocking calcite crystals and is associated with used in sculpture and architecture; those are the identifying facts of Marble. Exam Takeaway: Link Sandstone with “often shows bedding layers” and “commonly used as a building stone” for quick revision.