Coral Reefs
Coral reefs are underwater structures made from calcium carbonate secreted by corals. They are home to a diverse range of marine life and are considered to be one of the most biologically diverse ecosystems on the planet. Coral reefs are found in shallow, warm waters and are particularly abundant in the tropics. They provide important ecosystem services such as protecting coastlines from storms and erosion, providing habitats for fish and other marine organisms, and supporting tourism and recreation. However, coral reefs are under threat from a range of human activities including overfishing, pollution, and climate change.
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