Question 1: Which ocean region hosts the most coral species?
A. Maldives
B. Raja Ampat
C. Red Sea
Raja Ampat in Indonesia is home to over 75% of known coral species, making it one of the most biodiverse marine regions in the world.
Correct Answer: Raja Ampat
Question 2: What tiny animal builds vast reef structures?
A. Coral polyps
B. Krill
C. Sea urchins
Coral reefs are formed by colonies of coral polyps, which secrete calcium carbonate to build extensive limestone structures over time.
Correct Answer: Coral polyps
Question 3: Which large formation is the biggest living structure?
A. Great Barrier Reef
B. Sargasso Sea
C. Mariana Trench
The Great Barrier Reef off Australia’s coast is the largest living structure on Earth, stretching over 1,400 miles.
Correct Answer: Great Barrier Reef