Question

2. How are extrusive igneous rocks formed?​

Answer 1

Answer:

Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. ... When lava comes out of a volcano and solidifies into extrusive igneous rock, also called volcanic, the rock cools very quickly.

Explanation:

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Answer 2

Answer:

Extrusive rocks are formed on the surface of

the Earth from lava, which is magma that has emerged from underground. ... When lava comes out of a volcano and solidifies into extrusive igneous rock, also called volcanic, the rock cools very quickly.