What is the difference between extrusive igneous rocks and intrusive i

1.	What is the difference between extrusive igneous rocks and intrusive igneous rocks?
Answer» Intrusive igneous ROCKS crystallize below Earth's SURFACE, and the slow cooling that OCCURS there allows large crystals to form. Extrusive igneous rocks erupt ONTO the surface, where they cool quickly to form SMALL crystals.

What is the difference between extrusive igneous rocks and intrusive igneous rocks?

Answer»

Intrusive igneous ROCKS crystallize below Earth's SURFACE, and the slow cooling that OCCURS there allows large crystals to form.

Extrusive igneous rocks erupt ONTO the surface, where they cool quickly to form SMALL crystals.