character: Ms. Lee
topic: Impact of Pollutants on Marine Biodiversity
grade: 9
subject: Chemistry
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character: Dr. Smith
topic: Effects of Heavy Metals on Aquatic Life
grade: 9
subject: Chemistry
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character: Mr. Johnson
topic: Chemical runoff and Coral Reef Health
grade: 9
subject: Chemistry
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character: Ms. Patel
topic: Acid Rain and Its Effects on Marine Ecosystems
grade: 9
subject: Chemistry
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