character: Waste Watcher
topic: Learning About Land Pollution and Recycling
grade: 4
subject: Social Studies
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character: Eco Explorer
topic: Understanding Ecosystem Balance
grade: 4
subject: Social Studies
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character: Recycling Ranger
topic: The Importance of Reducing Waste
grade: 4
subject: Social Studies
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character: Pollution Patrol
topic: Identifying Sources of Land Pollution
grade: 4
subject: Social Studies
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