character: Dr. Oceanus
topic: Impact of Human Activities on Ocean Food Webs
grade: 10
subject: Biology
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character: Marine Biologist
topic: Effects of Overfishing on Marine Ecosystems
grade: 10
subject: Biology
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character: Environmental Scientist
topic: Climate Change and Its Influence on Aquatic Life
grade: 10
subject: Biology
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character: Ecologist
topic: Pollution and Its Effects on Ocean Biodiversity
grade: 10
subject: Biology
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