Question 19
Coral reefs are vibrant underwater ecosystems built by tiny coral polyps. They are not only beautiful but also critical to marine biodiversity and coastal protection.
Which coral reef, located in the Caribbean, is the second-largest in the world?
Did You Also Know...
By Quiz Coins
The first Olympics were held in 776 BCE in Olympia, Greece, and consisted of just one event: a 192-meter sprint.