character: Professor Emily Carter
topic: Chemistry of Aquatic Ecosystems
grade: 12
subject: Chemistry
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character: Dr. Richard Smith
topic: Impact of pH Levels on Aquatic Life
grade: 12
subject: Chemistry
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character: Environmental Scientist Julia Thompson
topic: Nutrient Cycles in Aquatic Systems
grade: 12
subject: Chemistry
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character: Marine Biologist David Lee
topic: Effects of Pollutants in Freshwater Ecosystems
grade: 12
subject: Chemistry
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