character: Eco Friend
topic: How Trees Clean Our Air
grade: 3
subject: Geography
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character: Airy the Advocate
topic: The Importance of Clean Air
grade: 3
subject: Geography
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character: Nature Nerd
topic: Trees and Their Role in the Ecosystem
grade: 3
subject: Geography
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character: Captain Carbon
topic: Reducing Pollution with Trees
grade: 3
subject: Geography
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