Great Barrier Reef may enters ‘critical time’

Australia's Great Barrier Reef is at risk of severe coral bleaching if warm March weather persists. Previously, heat waves in 2016 and 2017 led to significant coral loss, with 30% dying in 2016 and another 20% in 2017. The reef, comparable in size to Japan, faces ongoing threats from climate change.

What is the potential threat to the Great Barrier Reef mentioned in the video?

• Pollution from ships

• Increased tourism

• Severe coral bleaching

• Rising sea levels

How does the size of the Great Barrier Reef compare to a country?

• It is smaller than Japan

• It is around the same size as Japan

• It is the same size as Australia

• It is larger than Japan

What was the impact of the heat waves on the Great Barrier Reef between 2016 and 2017?

• Half of all corals died

• Only a small portion of corals were affected

• No significant impact

• All corals were destroyed

According to National Geographic, what percentage of corals died in 2016?

• 10%

• 20%

• 30%

• 40%

What additional percentage of corals perished in 2017 due to heat stress?

• 40%

• 30%

• 20%

• 10%