How do Corel reefs grow?

Coral reefs grow through the accumulation of calcium carbonate produced by coral polyps, tiny marine animals that form the foundation of the reef. These polyps secrete a hard exoskeleton as they feed on plankton and organic material, gradually building up the reef structure over time. Additionally, corals rely on a symbiotic relationship with zooxanthellae, algae that provide nutrients through photosynthesis, further supporting their growth. Environmental factors such as water temperature, light, and clarity also play crucial roles in the health and expansion of coral reefs.