character: Environmental Scientist
topic: Effects of Pollutants on Marine Ecosystems
grade: 9
subject: Geography
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character: Marine Biologist
topic: Impact of Oil Spills on Ocean Life
grade: 9
subject: Geography
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character: Oceanographer
topic: Chemical Pollutants in Coastal Waters
grade: 9
subject: Geography
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character: Ecologist
topic: Relationship Between Water Quality and Marine Biodiversity
grade: 9
subject: Geography
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