reefs

Reefs are underwater structures made primarily of the calcium carbonate skeletons of coral animals. They form in warm, shallow ocean waters through the growth of corals over thousands of years, creating vibrant ecosystems that support diverse marine life. Reefs act as natural barriers, protecting coastlines from erosion and storms, and they are vital for fishing, tourism, and biodiversity. Beyond their biological importance, reefs are sensitive to environmental changes like pollution and climate change, which threaten their existence. Overall, reefs are essential, complex habitats that sustain marine health and provide significant ecological and economic benefits.