The Great Barrier Reef: Challenges and Importance

What is the current outlook for the Great Barrier Reef according to the Australian government?

• Good

• Excellent

• Poor

• Very Poor

How many individual coral reefs make up the Great Barrier Reef?

• 4,000

• 3,000

• 2,000

• 1,000

What is the main cause of mass coral bleaching?

• Coastal development

• Pollution

• Overfishing

• Unnaturally warm ocean water

What percentage of the Great Barrier Reef's coral was killed during the 2016 and 2017 marine heat waves?

• 50%

• 25%

• 10%

• 75%

What could happen if global temperatures increase by 1.8 degrees Celsius?

• Coral reefs could double in size

• No significant change

• 99% of the world's coral could be at risk

• Coral reefs could thrive

What is one of the local threats to the Great Barrier Reef?

• Local pollution

• Space debris

• Air pollution

• Deforestation

What percentage of marine life do coral reefs provide a home for?

• 75%

• 25%

• 50%

• 10%

What is a potential consequence of losing coral reefs?

• Loss of potential medical treatments

• Increased biodiversity

• Decrease in ocean temperature

• Increase in fish population