Coral Reefs Quiz

What process do algae use to produce nutrients for corals?

• Respiration

• Fermentation

• Photosynthesis

• Digestion

What phenomenon causes coral reefs to lose their color?

• Coral bleaching

• Coral erosion

• Coral fading

• Coral whitening

What is the main cause of coral bleaching?

• Overfishing

• Rising sea temperatures

• Pollution

• All of the above

How long can it take for coral reefs to recover from mass bleaching events?

• 1 to 2 years

• 3 to 5 years

• 10 to 15 years

• 20 to 25 years

What is the world's largest coral reef?

• The Red Sea Reef

• The Great Barrier Reef

• The Caribbean Reef

• The Coral Triangle

What material is used to create 3D-printed reef tiles?

• Plastic

• Terracotta

• Concrete

• Metal

Why was terracotta chosen for the reef tiles?

• It is cheap

• It is similar to calcium carbonate

• It is lightweight

• It is colorful

What is the purpose of the 3D-printed reef tiles?

• To decorate the ocean floor

• To restore coral reefs

• To attract tourists

• To prevent overfishing

What is a potential downside of making corals immune to warmth?

• They may become more colorful

• They may become more sensitive to other challenges

• They may grow faster

• They may become less attractive to fish

What percentage of the ocean floor do coral reefs cover?

• 10%

• 5%

• 1%

• 15%