character: Dr. Emily Carter
topic: Impact of pH Levels in Aquatic Environments on Aquatic Life
grade: 12
subject: Chemistry
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character: Professor John Smith
topic: Effects of Acid Rain on Freshwater Ecosystems
grade: 12
subject: Chemistry
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character: Dr. Sarah Johnson
topic: Role of pH in Nutrient Availability in Water Bodies
grade: 12
subject: Chemistry
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character: Mr. Alan Brown
topic: Biological Indicators of Water Quality and pH Balance
grade: 12
subject: Chemistry
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