Question

question 5 of 28
a geologist finds a large sample of metamorphic rock. what can the geologist conclude about the conditions of the area when the metamorphic rock formed?
a. it was extremely cold, which caused particles to freeze together.
b. it was the site of a volcano, which formed rock from cooled lava.
c. it was under very high pressure, which changed rocks into new forms.
d. it was an area with slow - moving water, which caused layers to form.

Explanation:

Metamorphic rocks form under high - pressure and high - temperature conditions. High pressure causes rocks to change into new forms. Option A describes a process not related to metamorphic rock formation. Option B describes the formation of igneous rock from cooled lava. Option D describes the formation of sedimentary rock from layer - building in slow - moving water.

Answer:

C. It was under very high pressure, which changed rocks into new forms.