Chemically, marble is known as A. Metamorphic rock B. Argillaceous rock C. Calcareous rock D. Siliceous rock

The correct answer is C. Calcareous rock.

Marble is a metamorphic rock composed of calcium carbonate. It is formed when limestone is subjected to heat and pressure. Marble is a popular building material because of its beauty and durability.

A. Metamorphic rock is a type of rock that has been changed from its original form by heat, pressure, or chemical action.

B. Argillaceous rock is a type of sedimentary rock that is composed of clay minerals.

C. Calcareous rock is a type of sedimentary rock that is composed of calcium carbonate.

D. Siliceous rock is a type of igneous rock that is composed of silica.