character: Rachel Carson
topic: The Role of Biogeochemical Cycles in Environmental Health
grade: 12
subject: Chemistry
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character: David Suzuki
topic: Environmental Impacts of Biogeochemical Cycles
grade: 12
subject: Chemistry
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character: Bill McKibben
topic: Climate Change and Biogeochemical Cycles
grade: 12
subject: Chemistry
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character: Jane Goodall
topic: Biodiversity and Ecosystem Health
grade: 12
subject: Chemistry
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