I believe the answer would be B
Answer:
Coral reefs: A structure formed when the skeletons of coral animals grow together ... grow outward toward the ocean, Coral reefs ... Explain why almost all growth in a coral reef occurs within 40 meters of the waters surface ... forces inside earths surface can push down toward the heat of earth's mantle.
Explanation:
Well its either an compound or molecule cuz both breaks apart to form ions.
hope this helps.
