9. On a geology field trip, Toccara’s class studies a sedimentary rock formation. Is it possible that material from this sedimentary rock could ever form igneous rock?

Question

Responses

a
Yes, if sedimentary rock is moved below Earth’s outer layer and exposed to energy from Earth’s interior, it can melt into liquid rock and form igneous rock.
Yes, if sedimentary rock is moved below Earth’s outer layer and exposed to energy from Earth’s interior, it can melt into liquid rock and form igneous rock.

b
Yes, if sedimentary rock is exposed to energy from the sun at Earth’s surface for a long enough time, it can melt into liquid rock and form igneous rock.
Yes, if sedimentary rock is exposed to energy from the sun at Earth’s surface for a long enough time, it can melt into liquid rock and form igneous rock.

c
No, igneous rock forms under Earth’s outer layer due to energy from Earth’s interior, but sedimentary rock is only at Earth’s surface.
No, igneous rock forms under Earth’s outer layer due to energy from Earth’s interior, but sedimentary rock is only at Earth’s surface.

d
No, igneous rock can only form out of other igneous rocks. Sedimentary rock cannot change into igneous rock.
No, igneous rock can only form out of other igneous rocks. Sedimentary rock cannot change into igneous rock.

Answer 1

The correct response is:

a: Yes, if sedimentary rock is moved below Earth’s outer layer and exposed to energy from Earth’s interior, it can melt into liquid rock and form igneous rock.

Explanation: Sedimentary rocks can indeed change into igneous rocks if they are subjected to high temperatures and pressures, typically by being subducted into the mantle where they can melt and then solidify as magma cools. This process is part of the rock cycle.