Question

Which of the following best describes a process by which metamorphic rock becomes igneous rock

A.weathering into sediments, then eroding
B.compacting under pressure and cementing
C.changing shape under heat and pressure
D.melting completely, then cooling

Answer 1

The process by which metamorphic rock becomes igneous rock is melting completely, then cooling.

Step-by-step explanation:

The process by which metamorphic rock becomes igneous rock is D. melting completely, then cooling.

Metamorphic rocks form when pre-existing rocks are altered by heat and pressure. However, in order for metamorphic rock to become igneous rock, it must undergo complete melting to form magma or lava. This molten material then cools and solidifies, forming igneous rock.

Answer 2

Answer: D. Melting completely, then cooling

Metamorphic rock melt, become magma (which is really just lava), and then comes to the Earth’s surface to eventually cool and become igneous rocks.