character: Rachel Carson
topic: The Role of Sustainable Farming in Environmental Health
grade: 11
subject: Science
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character: Ellen Swallow Richards
topic: Environmental Sanitation and Its Impact on Public Health
grade: 11
subject: Science
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character: Wangari Maathai
topic: The Green Belt Movement and Sustainable Agriculture
grade: 11
subject: Science
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character: Alfred W. Crosby
topic: Ecological Imperialism: The Biological Expansion of Europe, 900-1900
grade: 11
subject: Science
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