Coral Reef

Coral reefs are often called "underwater gardens". Their rainbow colors, intricate shapes, and colorful creatures together create a rich habitat, contributing to a rich biodiversity.Coral reefs, as well as rain forests, are an invaluable resource and can affect the survival of the biosphere.Because of the unique ability of coral reefs to grow even under low nutrient conditions, they have become home to an incredible number of fish and other marine species, without making them infertile.Millions of people worldwide depend on coral reefs for their daily needs. But these ecosystems are threatened with extinction, despite the economic and ecological significance of the coral reefs.