character: Hydro Harry
topic: The Power of Hydropower
grade: 6
subject: Geography
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character: Eco Emma
topic: Renewable Energy Sources
grade: 6
subject: Geography
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character: Waves Wendy
topic: Ocean Energy and Its Benefits
grade: 6
subject: Geography
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character: Solar Sam
topic: Harnessing Solar Power
grade: 6
subject: Geography
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