Question

the solid crust of rocks forming the surface of Earth

Answer 1

Igneous and Metamorphic rocks
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Answer 2

…rocks are confined to the Earth's crust, which is the thin, light outer solid skin of the Earth ranging in thickness from 40–100 kilometres (25 to 62 miles) in the continental blocks to 4–10 kilometres in the ocean basins. Igneous and metamorphic rocks constitute the bulk of the crust.