Question

Which is an example of the rock cycle?

A.
Minerals are broken down into small rocks that erode and become soil.

B.
Minerals are broken down into small minerals that precipitate and become rock.

C.
Minerals are heated under pressure and form rocks that erode and become soil.

D.
Minerals are heated under pressure and form other minerals that evaporate and become rock.

Answer 1

C

Heat and pressure transform existing minerals/rocks into metamorphic rock, and those rocks can later be weathered and eroded into soil or sediments — a clear part of the rock cycle.