Which rock is metamorphic and formed from shale?

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Multiple Choice

Which rock is metamorphic and formed from shale?

Explanation:
Shale, a clay-rich sedimentary rock, becomes slate under heat and directed pressure during regional metamorphism. This low-grade metamorphic process recrystallizes and aligns fine minerals into a preferred orientation, giving slate its characteristic foliation and ability to split into thin sheets. Because slate forms specifically from shale through metamorphism, it is the metamorphic rock derived from shale. The other rocks listed don’t fit this path: granite forms from cooling magma (igneous), limestone from carbonate sediments (sedimentary), and sandstone from cemented sand grains (sedimentary).

Shale, a clay-rich sedimentary rock, becomes slate under heat and directed pressure during regional metamorphism. This low-grade metamorphic process recrystallizes and aligns fine minerals into a preferred orientation, giving slate its characteristic foliation and ability to split into thin sheets. Because slate forms specifically from shale through metamorphism, it is the metamorphic rock derived from shale. The other rocks listed don’t fit this path: granite forms from cooling magma (igneous), limestone from carbonate sediments (sedimentary), and sandstone from cemented sand grains (sedimentary).

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