character: Dr. Patel
topic: Conservation Efforts for Freshwater Ecosystems
grade: 9
subject: Science
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character: Dr. Smith
topic: Impact of Pollution on Freshwater Ecology
grade: 9
subject: Science
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character: Ms. Johnson
topic: Restoration Techniques for Lakes and Rivers
grade: 9
subject: Science
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character: Mr. Roberts
topic: Biodiversity in Aquatic Habitats
grade: 9
subject: Science
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