what are the coral reefs? were are they found? why are they important to marine lives?
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what are the coral reefs? were are they found? why are they important to marine lives?
what are the coral reefs? were are they found? why are they important to marine lives?
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Explanation:
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. ... They are most commonly found at shallow depths in tropical waters, but deep water and cold water coral reefs exist on smaller scales in other areas.