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4. Explain the shortest path for an igneous rock to become a metamorphic rock.

5. What are the three ways that a sedimentary rock can be changed and what is the result of each change?



Answer :

GinnyAnswer

Final answer:

Metamorphic rocks transform from existing rocks through mineral rearrangement caused by heat and pressure without melting the rock entirely.


Explanation:

Metamorphic rocks form through the physical and chemical alteration of pre-existing rocks, whether igneous or sedimentary. These changes occur due to increased temperature and/or pressure without fully melting the rock, resulting in rearrangement of minerals to form new minerals. For example, hornfels demonstrates how minerals rearrange themselves during metamorphism.


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