World Coral Reefs

The Great Barrier Reef, the world's largest coral reef system, is located off the coast of which country?

Coral reefs are sometimes called the 'rainforests of the sea' because they support what?

The Belize Barrier Reef, a UNESCO World Heritage Site, is the largest barrier reef in which hemisphere?

Coral bleaching occurs when corals expel the algae living in their tissues, primarily due to what environmental stress?

The Red Sea is known for having some of the world's most pristine coral reefs. Which two continents does it separate?

An atoll is a ring-shaped coral reef that encircles what?

The Maldives, a nation of coral atolls in the Indian Ocean, faces which major threat from climate change?

What is the primary building material that coral polyps use to construct reefs?

The 'Coral Triangle,' the global center of marine biodiversity, spans the waters of six countries in which region?

Approximately what percentage of marine fish species depend on coral reefs at some point in their life cycle?

The Great Barrier Reef stretches approximately how many miles along the Australian coastline?

Which type of relationship do corals have with the tiny algae (zooxanthellae) that live within them?

Coral reefs cover less than 1% of the ocean floor but support approximately what fraction of all marine species?

The Mesoamerican Reef, the second-largest barrier reef in the world, extends along the coast of which region?

Charles Darwin proposed a theory about the formation of which type of coral reef structure?