I believe the answer that it has too much water
Answer:
Aurora, luminous phenomenon of Earth's upper atmosphere that occurs primarily in high latitudes of both hemispheres; auroras in the Northern Hemisphere are called aurora borealis, aurora polaris, or northern lights, and in the Southern Hemisphere aurora australis, or southern lights.
Explanation:
Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock.