Coral Reef

Geochemistry, Origins, & Threats

Oct 3, 2023 - 18:17
 0  12

Great Barrier Reef

coral reef, ridge or hummock formed in shallow ocean areas by algae and the calcareous skeletons of certain coelenterates, of which coral polyps are the most important. A coral reef may grow into a permanent coral island. Often called the “rainforests of the sea,” coral reefs are home to a spectacular variety of organisms.

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