What rocks forms when limestone undergoes metamorphism?

Marble is the correct answer.

Explanation:

Marble rocks forms when limestone undergoes metamorphism.

Marble rock is formed from the limestones,when the limestone is influenced by heat and tremendous pressure it transforms in marble through a method called metamorphism.

During the metamorphism, limestone gets recrystallizes and result in the formation of interlocking carbonate mineral crystals that form the marble.

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