Question

define metamorphism​

Answer 1

Answer:

alteration of the composition or structure of a rock by heat, pressure, or other natural agency

Explanation:

this is how we can define METAMORPHOSIS

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Answer 2

Answer:

Metamorphism is the change of minerals or geologic texture in pre-existing rocks, without the protolith melting into liquid magma. The change occurs primarily due to heat, pressure, and the introduction of chemically active fluids.Metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change)