character: Rachel Carson
topic: Impact of DDT on wildlife and ecosystems
grade: 11
subject: Biology
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character: Silent Spring
topic: Environmental consequences of pesticide use
grade: 11
subject: Biology
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character: Bald Eagle
topic: Effects of DDT on bird populations
grade: 11
subject: Biology
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character: Wildlife Conservation
topic: Ecosystem balance and the role of pesticides
grade: 11
subject: Biology
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