What is a Coral Reef?

Coral reefs cover only 1 of the ocean floor, but support an estimated 25 of all marine life in the ocean, earning them the moniker rainforest of the sea. They also play a critical role for coastal communities; preventing coastal erosion, protecting coastlines from hurricane damage, and generating 36 billion in annual income worldwide. We 8230;. https://www.nasa.gov/gener...
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