Which term denotes rock formed by the deposition and consolidation of sediment?

Which term denotes rock formed by the deposition and consolidation of sediment?

• A. Rock
• B. Sial
• C. Sedimentary Rock
• D. Sewage

Answer: (C)

The idea here is how sediments settle and become a solid rock. When bits of weathered rock and minerals are carried by water, wind, or ice and eventually settle out, they stack in layers (deposition). Over long periods these layers get pressed together and minerals act as cement to glue the grains, forming solid rock. This process is called lithification, and the resulting rocks are sedimentary rocks. Examples include sandstone, limestone, and shale. The other terms aren’t the right fit: a generic “rock” isn’t specific about how it forms, sial refers to a crustal layer composition rather than a rock type, and sewage is wastewater, not rock.

The idea here is how sediments settle and become a solid rock. When bits of weathered rock and minerals are carried by water, wind, or ice and eventually settle out, they stack in layers (deposition). Over long periods these layers get pressed together and minerals act as cement to glue the grains, forming solid rock. This process is called lithification, and the resulting rocks are sedimentary rocks. Examples include sandstone, limestone, and shale.

The other terms aren’t the right fit: a generic “rock” isn’t specific about how it forms, sial refers to a crustal layer composition rather than a rock type, and sewage is wastewater, not rock.