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Explain how an intrusive igneous rock could become a metamorphic rock and then an extrusive igneous rock.

*How can an igneous rock become a sedimentary rock?

How does the rock cycle display the law of conservation of mass?

*What determines the size of mineral grains in igneous rocks?

What will determine if a rock becomes an igneous rock or a metamorphic rock?

What is the difference between weathering and erosion?

Starred(*) questions are the ones I need help with the most.