A rock formed when particles from other rocks or remains of plants and animals are pressed and cemented together is:

A rock formed when particles from other rocks or remains of plants and animals are pressed and cemented together is:

• A. Sedimentary Rock
• B. Metamorphic Rock
• C. Igneous Rock
• D. Limestone

Answer: (A)

Sedimentary rocks form when sediments—pieces of other rocks or organic remains—settle in layers and are squeezed together by overlying material (compaction) and then cemented by minerals precipitating from water (cementation). That lithification process is exactly what’s described, so the rock type is sedimentary. Limestone is a specific example of a sedimentary rock, typically formed from calcium carbonate in shells and coral, but the description points to the broader category of sedimentary rocks rather than to a particular specimen or to metamorphic or igneous rocks, which form through different processes.

Sedimentary rocks form when sediments—pieces of other rocks or organic remains—settle in layers and are squeezed together by overlying material (compaction) and then cemented by minerals precipitating from water (cementation). That lithification process is exactly what’s described, so the rock type is sedimentary. Limestone is a specific example of a sedimentary rock, typically formed from calcium carbonate in shells and coral, but the description points to the broader category of sedimentary rocks rather than to a particular specimen or to metamorphic or igneous rocks, which form through different processes.