character: Prof. Michael Green
topic: Impact of Acid Rain on Freshwater Fish Species
grade: 12
subject: Chemistry
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character: Dr. Sarah Thompson
topic: Effects of pH Levels in Aquatic Ecosystems
grade: 12
subject: Chemistry
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character: Mr. John Adams
topic: Chemical Reactions in Freshwater Environments
grade: 12
subject: Chemistry
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character: Ms. Emily Johnson
topic: Biological Indicators of Water Quality
grade: 12
subject: Chemistry
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