Question

How are extrusive and intrusive rocks formed?​

Answer 1

Answer:

intrusive rocks:- when magma cools down and solidifies deep inside the earth, they are called intrusive igneous rocks. they cools slowly due to high temperature so they have grained surface.

extrusive rocks:- when magma cools down and solidifies outside the earth's surface, they are called extrusive igneous rocks. they cools fastly , so they have smooth surface.

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