Metamorphic rocks are generally used to convert the old rocks to the new type of rocks. The process is called metamorphism. The igneous rock include limestone, metamorphic rock include marble and sandstone, quartz crystals.
What is Limestone?
Limestone is used in the process of making a material that is mainly used in cement making.
1. "Limestone" is an igneous rock.
2. "Marble" is a metamorphic rock.
3. Most sandstone is made of "quartz crystals".
Sandstone is refers to as a sedimentary rock. Sandstone is made at the time when grains are transmitted over a long period of time.
Therefore, correct options are B, B and D.
Learn more about quartz crystals, refer to the link:
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