character: Theodore Roosevelt
topic: National Parks and Wildlife Conservation
grade: 10
subject: Biology
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character: John Muir
topic: Advocacy for National Parks
grade: 10
subject: Biology
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character: Rachel Carson
topic: Environmental Conservation Movements
grade: 10
subject: Biology
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character: Gifford Pinchot
topic: Sustainable Forestry and Conservation Policies
grade: 10
subject: Biology
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