character: Dr. Richard Smith
topic: Impact of pH Levels on Aquatic Life
grade: 12
subject: Chemistry
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character: Dr. Jane Doe
topic: Effects of Ocean Acidification on Marine Species
grade: 12
subject: Chemistry
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character: Professor Emily Chen
topic: The Role of pH in Freshwater Ecosystems
grade: 12
subject: Chemistry
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character: Dr. Mark Johnson
topic: Chemical Indicators of Water Quality and Their Effects on Aquatic Habitats
grade: 12
subject: Chemistry
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