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Coral reefs

Coral reefs are structures formed from the calcium carbonate secretions of corals. They are colonies of tiny animals in marine areas containing few nutrients.

Contributors in Coral reefs

Coral reefs

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Natural environment; Coral reefs

החלק הזה של האוקיינוס המרחיבה כלפי חוץ מן המדף קונטיננטלית.

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