character: Rachel Carson
topic: Pioneering Environmentalism and the Impact of DDT
grade: 12
subject: Biology
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character: Silent Spring
topic: Rachel Carson's Book on DDT and Environmental Advocacy
grade: 12
subject: Biology
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character: DDT
topic: Chemical Impact on Biodiversity and Human Health
grade: 12
subject: Biology
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character: EPA
topic: Regulations and Policies Following Rachel Carson's Influence
grade: 12
subject: Biology
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