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Coral reefs are actually formed out of a mutual relationships between brown algae and coral and are the hard limestone skeletons of coral. This mutual relationship allows the algae
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Thousands of small organisms called coral polyps create coral reefs. The reefs are made of of the cup shaped skeletons of these polyps. The layer on the outside of the reef is actually
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The coral reefs are endangered because they only grow at a rate of 1 inch per year. Humans are destroying them much faster than they can grow.You can find more information here: http
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There are many reasons why coral reefs are in danger including pollution, fishing with dynamite and cyanide, global warming and increased sedimentation.
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