character: Insect Investigator
topic: Using Insects as Bioindicators of Water Pollution
subject: Science
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character: Aquatic Ecosystem Explorer
topic: The Role of Macroinvertebrates in Water Quality Assessment
subject: Science
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character: Freshwater Biologist
topic: Identifying Insects to Monitor Stream Health
subject: Science
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character: Environmental Scientist
topic: The Impact of Pollution on Aquatic Insect Populations
subject: Science
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