Question

Rocks formed by the cooling of the hot masses of the earth or solidification of molten matter are called _______________.

• A. Hard rocks
• B. Igneous rocks
• C. Volcanic rocks
• D. Aqueous rocks

Answer 1

Answer: (B)

Igneous rocks

• Igneous rocks are the rocks that are formed by the cooling of hot masses or by the solidification of molten matter, hence option B is correct.
• Hard rock is any rock that is hard. It is a very general term.
• Aqueous rocks are the rocks deposited by the water and they get formed in layers or strata.
• Volcanic rocks are the rocks coming out of the volcanic eruption which are mostly of igneous origin but as already the specific option of Igneous rocks is provided, option D is not the most suitable answer.