character: Rachel Carson
topic: Environmental Impact Studies on Marine Ecosystems
grade: 12
subject: Geography
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character: Silent Spring
topic: The impact of pesticides on marine life
grade: 12
subject: Geography
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character: Oceans
topic: Global marine ecosystem health and conservation
grade: 12
subject: Geography
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character: Marine Biology
topic: Effects of pollution on marine organisms
grade: 12
subject: Geography
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