Atolls

Atolls are ring-shaped coral formations that encircle a lagoon, typically found in warm ocean waters. They form from the remnants of volcanic islands that have eroded over time. As the island sinks and coral grows, a barrier is created, leading to the formation of the lagoon in the center. Atolls are important ecosystems, providing habitats for diverse marine life and often serving as locations for unique biodiversity. They are also significant to many cultures and communities, offering resources and protection from ocean waves. However, atolls are vulnerable to climate change and rising sea levels.