Which term is defined as the combination of one or more minerals?

Which term is defined as the combination of one or more minerals?

• A. Sedimentary Rock
• B. Rock
• C. Sea-floor Spreading
• D. Sewage

Answer: (B)

A rock is a natural solid made from minerals bonded or intergrown together. Minerals are the building blocks with definite chemical compositions and crystal structures, so when one or more of them come together, they form a rock. Granite, for example, is composed of several minerals like quartz, feldspar, and mica, while limestone is mostly calcite but still considered a rock because it’s a solid aggregate of minerals. The other terms don’t fit: sedimentary rock is just a type of rock formed by deposition and cementation, sea-floor spreading is a geological process, and sewage is waste water.

A rock is a natural solid made from minerals bonded or intergrown together. Minerals are the building blocks with definite chemical compositions and crystal structures, so when one or more of them come together, they form a rock. Granite, for example, is composed of several minerals like quartz, feldspar, and mica, while limestone is mostly calcite but still considered a rock because it’s a solid aggregate of minerals. The other terms don’t fit: sedimentary rock is just a type of rock formed by deposition and cementation, sea-floor spreading is a geological process, and sewage is waste water.