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15
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Where is the Great Barrier Reef?
In Australia.
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15
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What does the word "remains" in the text refer to?
It refers to the dead skeletons of old polyps where young polyps make new skeletons on.
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15
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What are the chemicals from reef creatures used for?
They are used to make medicine.
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What does the text say about algae in coral reefs?
They are good for the coral reefs.
both
They harm the coral reefs.
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thief
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25
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magnet
Take 5 points!
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rocket
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banana
Go to last place!
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15
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What are coral polyps?
Coral polyps are small creatures that build coral reefs.
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What are some threats to coral reefs?
Overfishing, pollution, climate change, and damage from divers.
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How do humans benefit from coral reefs?
They provide food, jobs, protect coastlines, and are a source for new medicines.
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How much of the world's coral reefs is already dead?
50%
10%
20%
30%
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seesaw
Swap points!
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gold
Win 50 points!
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rocket
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thief
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What will happen in the future if we don't take good care of the coral reefs?
Many experts believe that all coral reefs could be gone by 2050.
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How do coral reefs protect the coast?
They slow down waves and prevent erosion on the beaches.
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How big is the great barrier reef?
250.000 square kilometer
350.000 square kilometer
150.000 square kilometer
450.000 square kilometer
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banana
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rocket
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shark
Other team loses 20 points!
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thief
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15
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What is coral bleaching?
It's when a coral turns white.
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What is the cause of coral bleaching?
Global warming (warmer ocean temperatures)
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