character: Barbaloots
topic: Animals affected by pollution
grade: 3
subject: Reading
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character: Lorax
topic: Environmental protection
grade: 3
subject: Reading
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character: Once-ler
topic: Impact of industrialization on nature
grade: 3
subject: Reading
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character: Truffula Trees
topic: Deforestation and habitat loss
grade: 3
subject: Reading
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