Question

what is the meaning of coral reefs ​

Answer 1

Explanation:

Coral reefs flourish in ocean waters that provide few nutrients. 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.

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Answer 2

Answer:

A coral reef is an under water ecosystem characterized by reef - buildings corals . reefs are formed of colonies of corals polyps held together by calcium carbonate .most coral reefs are built from stony corals whose palyps cluster in groups