Question:

Which of the following is a Metamorphic rock?

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Slate, marble, quartzite, and gneiss are common examples of metamorphic rocks.
  • Granite
  • Coal
  • Sandstone
  • Slate
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The Correct Option is D

Solution and Explanation

Concept: Metamorphic rocks are formed when existing rocks are changed due to heat, pressure, or chemically active fluids.

Step 1:
Granite is an igneous rock.

Step 2:
Coal is generally considered an organic sedimentary rock.

Step 3:
Sandstone is a sedimentary rock.

Step 4:
Slate is formed from shale due to metamorphism.

Step 5:
Therefore, the metamorphic rock among the given options is: \[ \boxed{\text{Slate}} \]
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