Question

which of the following statements correctly describes rocks and minerals?
multiple choice
rocks are solid while minerals can be solid or liquid.
rocks have unique physical and chemical properties while minerals only have unique chemical properties.
rocks are composed of minerals.
rocks are an important component of soil while minerals are not.

Explanation:

• Rocks are solid aggregates of minerals or mineraloids. Minerals are naturally - occurring, inorganic solids with a definite chemical composition and a crystalline structure.
• Both rocks and minerals are solid. Minerals have unique physical (e.g., hardness, luster) and chemical properties. Minerals are also an important component of soil as they weather to form soil particles.

Answer:

Rocks are composed of minerals.