Question 1: When did the first corals begin forming on Earth?
A About 500 million years ago
B Around 10 million years ago
C Just after the dinosaurs went extinct
Corals first appeared roughly 500 million years ago—485 million years ago to be exact. But coral reefs as we know them began forming later, about 240 million years ago. Over time, they’ve survived multiple mass extinctions and evolved into vital ecosystems supporting marine biodiversity.
Correct Answer: About 500 million years ago
Question 2: New Caledonia is a group of islands in which ocean?
A Pacific
B Indian
C Atlantic
The archipelago of New Caledonia lies about 900 miles east of Australia. Its tropical lagoons and coral reefs form an extensive reef system that was designated a World Heritage Site in 2008. New Caledonia is an overseas territory of France with unique status that grants it a degree of autonomy.
Correct Answer: Pacific
Question 3: What is one way you can help protect coral reefs?
A Swim with sharks
B Eat more seafood
C Use reef-safe sunscreen
Chemicals used in sunscreens like oxybenzone and octinoxate can harm coral and other marine life by disrupting vital biological processes. Using reef-safe sunscreens during water activities can help preserve reef health.
Correct Answer: Use reef-safe sunscreen