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Assessment
What is the primary structure that makes up coral reefs?
Coral polyps
Seaweed
Rock formations
Sand deposits
Which of the following is a significant threat to coral reef ecosystems?
Overfishing
Urban gardening
Wind energy production
Mountain hiking
Why are coral reefs often referred to as the 'rainforests of the sea'?
They are teeming with biodiversity.
They are found only in tropical waters.
They provide a habitat for a few species.
They rely solely on terrestrial plants for oxygen.
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