Which phrases describe a metamorphic rock? check all that apply.

formed from a volcano
was once buried underground
formed from evaporating water
used to contain different minerals
exposed to extreme heat and pressure

The answers are:

was once buried underground
used to contain different minerals
exposed to extreme heat and pressure

Basics of metamorphic rock: It is formed under extreme heat or pressure, changing in texture or chemical components that differentiate with its parent rock.

Let's look into the options one by one:

Formed from a volcano
- Incorrect
- Metamorphic rock are formed when rock undergoes extreme heat or pressure, but not the rock that are primarily produced. The rocks formed from volcanicity are more likely to be metamorphic rock’s parent rock.

Was once buried underground
- Correct
- This is likely to be required to form a metamorphic rock, as the rock has to either undergo extreme heat, meaninfg that it meets the aureole, or undergo extreme pressure,meaning that it is buried in mountain and has been compressed.

Formed from evaporating water
- Incorrect
- By no means can water turn into any type of rock, therefore this is not possible.

Used to contain different minerals
-Correct
- It depends on the type of rocm whether it contains different type of minerals. For example, granitel, which is the parent rock of gneiss, contains quartz, mica and feldspar.

Exposed to extreme heat and pressure
-Correct
-Only under the above circumstances can metamorphic rock be formed, and they are necessary steps of formation.

Hope it helps!

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