character: Ms. Sarah Lopez
topic: Water and Its Impact on Ecosystems
grade: 12
subject: Chemistry
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character: Dr. Emily Carter
topic: The Role of Water in Chemical Reactions
grade: 12
subject: Chemistry
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character: Mr. John Smith
topic: Impact of Pollution on Aquatic Ecosystems
grade: 12
subject: Chemistry
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character: Ms. Rachel Green
topic: The Water Cycle and Its Importance in Ecosystems
grade: 12
subject: Chemistry
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