What is the purpose of coral reefs in the ocean?



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    Coral reefs form one of the most diverse ecosystems on earth. They are sometimes called the rain forests of the ocean. They are home to 25% of all marine species. Their ecotourism value is around $30 billion because of their astonishing beauty. They are home to many fish species, mollusks, sponges and echinoderms. Their value in ocean ecosystems is unparalleled.

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