character: Ecologist
topic: Role of Point Sources in Aquatic Ecosystem Health
grade: 9
subject: Geography
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character: Environmental Scientist
topic: Impact of Water Pollution on Aquatic Life
grade: 9
subject: Geography
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character: Marine Biologist
topic: Effects of Nutrient Runoff on Coastal Ecosystems
grade: 9
subject: Geography
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character: Hydrologist
topic: Water Quality Assessment in Lakes and Rivers
grade: 9
subject: Geography
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