Answer: A
Explanation:
"Igneous rock, any of various crystalline or glassy rocks formed by the cooling and solidification of molten earth material." Because igneous rocks are formed by the solidification of magma or molten earth material, most of the activity will take place underground as magma is beneath the Earth's surface.
Answer:
The correct answer for this question is A. Underground
Explanation:
Most of the igneous activity takes place under the tectonic plates and it is an ongoing process. It happens all the time.
