character: Dr. Liu
topic: Impact of Ocean Acidification on Coral Reefs
grade: 11
subject: Geography
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character: Dr. Smith
topic: Climate Change and Coral Reefs
grade: 11
subject: Geography
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character: Professor Green
topic: Marine Ecosystems and Their Vulnerabilities
grade: 11
subject: Geography
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character: Dr. White
topic: Effects of Ocean Temperature Rise on Marine Life
grade: 11
subject: Geography
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