Which is the largest coral reef in the world?
Which is the largest coral reef in the world?
A: Red Sea Reef
B: Great Barrier Reef
C: New Caledonia Reef
D: Andros Reef
The Great Barrier Reef; off Australia’s coast; is the world’s largest coral reef system; spanning over 2;300 kilometers. A UNESCO World Heritage Site; it supports diverse marine life. Other reefs are smaller; making this a frequent geography exam question due to its ecological significance.