Rocks altered by heat and pressure beneath Earth's surface are
A)intrusive igneous rocks.
B)extrusive sedimentary rocks.
C)metamorphic rocks.
D)igneous rocks.

Question

Quizplus · Accepted Answer

Rocks that are altered by heat and pressure beneath Earth's surface are known as metamorphic rocks. They are formed from pre-existing rocks, such as sedimentary or igneous rocks, that undergo a physical and/or chemical change due to the extreme conditions of heat and pressure. Intrusive igneous rocks are formed from molten rock that cools and solidifies beneath the Earth's surface, while extrusive sedimentary rocks are formed from the accumulation and lithification of sedimentary materials on the Earth's surface. Igneous rocks are formed from the solidification of molten rock either beneath or on the Earth's surface.

Rocks Altered by Heat and Pressure Beneath Earth's Surface Are