Question

what two ways are igneous rocks formed? intrusive igneous rocks form when magma cools inside the earth and extrusive igneous rocks form when lava cools outside the earth. extrusive igneous rocks form when magma cools inside the earth and intrusive igneous rocks form when lava cools outside the earth.

Explanation:

Igneous rocks are formed in two main ways. Intrusive igneous rocks form when magma cools slowly inside the Earth. Extrusive igneous rocks form when lava (magma that reaches the Earth's surface) cools quickly outside the Earth.

Answer:

Extrusive igneous rocks form when lava cools outside the Earth. Intrusive igneous rocks form when magma cools inside the Earth.