character: River Guardian
topic: Impact of Pollution on Freshwater Resources
grade: 6
subject: Geography
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character: Aquatic Life
topic: Effects of Water Pollution on Ecosystems
grade: 6
subject: Geography
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character: Water Cycle
topic: Interaction of Pollution with Natural Water Flow
grade: 6
subject: Geography
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character: Community Activist
topic: Local Efforts to Reduce Freshwater Pollution
grade: 6
subject: Geography
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