What does a Volcanic Eruption spew out?

Lava crystallizes and cools to form?

Igneous rocks break down into sediments due to a process of​

Layers of sediments turn into sedimentary rock due to a process of​

What forms when tremendous pressure is applied to sedimentary and igneous rocks?

What happens when metamorphic rocks are subjected to tremendous pressure and heat like the interior of the earth?

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