character: Environmental Scientist
topic: Chemical Pollutants Impact
grade: 9
subject: Geography
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character: Ecologist
topic: Effects of Chemical Pollutants on Aquatic Ecosystems
grade: 9
subject: Geography
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character: Biologist
topic: Biological Effects of Chemical Pollution
grade: 9
subject: Geography
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character: Chemist
topic: Chemical Interaction with Ecosystems
grade: 9
subject: Geography
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