Complete the Words

Coral reefs are underwater ecosystems often referred to as the "rainforests of the sea" due to their incredible biodiversity. are built tiny animals coral , which form large colonies thousands of years. structures shelter and food for a of all marine species, including fish, mollusks, crustaceans. Typically found in warm, clear, shallow tropical waters, they are among the most vibrant ecosystems on the planet. Their health is crucial for coastal protection and supporting local economies through fishing and tourism.