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Question
When Granite rocks get metamorphosed, they form
Options:
A .  Marble
B .  Quartzite
C .  Slate
D .  Gneiss
Answer: Option D
Answer: (d)
Gneiss is a high-grade metamorphic rock formed by the metamorphosis of granite which is a sedimentary rock. Gneiss is typically associated with major mountain building episodes.
It is often foliated (composed of layers of sheet-like planar structures), characterized by alternating darker and lighter coloured bands, called “gneissic banding”.

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