Social Sciences, asked by bmunnamunna1272, 7 months ago

what are coral reefs?

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Answered by inboxme100
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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. Most coral reefs are built from stony corals, whose polyps cluster in groups.

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Answered by moromi2529
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this is your answer

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