character: Dr. Emily Tran
topic: Impact of Water Salinity on Aquatic Life
subject: Geography
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character: Professor John Miller
topic: Effects of Ocean Acidification on Marine Ecosystems
subject: Geography
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character: Dr. Lisa Gomez
topic: Saltwater Intrusion and Its Consequences for Coastal Communities
subject: Geography
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character: Dr. Robert Chen
topic: The Role of Water Quality in Freshwater Biodiversity
subject: Geography
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