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Which of the Following Correctly Describes the Situation Regarding Coral

Question 52

Multiple Choice

Which of the following correctly describes the situation regarding coral bleaching?


A) The 1998 El Niño event caused the die-off of an estimated 30% of the world's reefs.
B) Scientists have identified the reasons polyps eject their algae.
C) The cooling of sea-surface temperatures is a great threat to coral.
D) Coral reefs are in equilibrium even though the oceans are under pressure from overfishing,pollution,sedimentation,and global warming.

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