types of coral reefs pdf

Difference between fringing reefs and barrier reef

Difference between fringing reefs and barrier reefs

A coral reef is a limestone rock which is made up of skeletons of small living organisms called polyps. The formation of coral reefs is highly attributed to the presence of calcium carbonate in the skeletons of polyps. When the polyps die, their skeletons which contain calcium carbonate are compacted together to form a coral …

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three people diving on body of water

5 CONDITION FOR EXISTENCE OF CORAL REEFS

Corals is limestone rock made by the accumulation of skeletons of tiny marine organisms called coral polyps. Reefs are shallow, mostly submarine features, built primarily by colonies of living marine organisms, including corals, sponges, and shellfish. Coral reefs occur only in the places coral polyps can survive and thrive.  The following are five conditions which …

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