Why is plutonic a synonym of intrusive?
A) Pluto was the Greek god of the sea; intrusive rock is formed in the sea.
B) They mean the same thing in everyday talk.
C) Pluto was the Greek god of the underworld; intrusive rock is formed underground.
D) Pluto was the Greek god of fire; intrusive rock is formed during volcanic eruption.

Question

Quizplus · Accepted Answer

Pluto was the Greek god of the underworld, which is generally associated with being underground. Intrusive rock is formed underground as well, hence the term "plutonic" being a synonym for "intrusive."

Why Is Plutonic a Synonym of Intrusive