Coral Reef
Context
A large underwater structure composed of the skeletons of colonial marine invertebrates called coral
Explanation
Coral reefs are diverse underwater ecosystems held together by calcium carbonate structures secreted by corals. They are often referred to as the 'rainforests of the sea'.
Applications
Coral reefs are crucial for marine biodiversity, providing habitat for a vast array of marine life.
They are important for coastal protection, tourism, and fishing industries.
Coral reefs are sensitive to climate change and are indicators of ocean health.