5.Coral reefs are intricately shaped rocklike structures that are formed as
a result of
a Volcanic activity that is common in tropical marine environment
b. Minerals that are washed from land ecosystem and build up
c. The gradual accumulation and fusion of skeletons of bony fosh
d. The secretion of calcium carbonate by tiny marine animals
Answers & Comments
Answer:
D
Explanation:
I think that's the answer