Question

what happens at point 5? a. igneous rock deep under the surface is subjected to high pressure and heat, which will transform it into metamorphic rock. b. igneous rock is lifted toward the surface by shifting plates, where it will cool and transform into metamorphic rock. c. igneous rock on the surface is subjected to high winds and weathering, which will erode it into metamorphic rock. d. igneous rock is pulled under the surface by shifting plates, where it will melt into metamorphic rock.

Explanation:

Metamorphic rock forms when existing rock (like igneous rock) is subjected to high heat and pressure deep underground, without melting. Option B is incorrect because cooling forms igneous, not metamorphic rock. Option C is incorrect because weathering/erosion breaks rock into sediment, not metamorphic rock. Option D is incorrect because melting forms magma/igneous rock, not metamorphic rock. Only option A correctly describes the formation of metamorphic rock from igneous rock via deep subsurface heat and pressure.

Answer:

A. Igneous rock deep under the surface is subjected to high pressure and heat, which will transform it into metamorphic rock.