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What is the primary difference between intrusiv... - SS1 Agriculture Rock formation Question

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

A

Intrusive rocks have larger crystals than extrusive rocks.

B

Extrusive rocks form beneath the Earth's surface.

C

Intrusive rocks form on the Earth's surface.

D

Extrusive rocks form from molten material.

correct option: a
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