Question

why intrusive igneous rocks are also called plutonic rocks​

Answer 1

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Answer:

Intrusive rock, also called plutonic rock because, igneous rock formed from magma forced into older rocks at depths within the Earth’s crust, which then slowly solidifies below the Earth’s surface, though it may later be exposed by erosion. Igneous intrusions form a variety of rock types.

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Answer 2

Answer:

instrusive rocks also called plutonic rocks because it is formed when magma cools down and solidifies below the surface of the earth.

Explanation:

and if it cools down and solidifies above earth surface it is called volcanic rocks..