character: Dr. Emily Patel
topic: Impact of water quality on aquatic ecosystems
grade: 10
subject: Biology
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character: Dr. John Smith
topic: Effects of pollutants on marine life
grade: 10
subject: Biology
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character: Ms. Sarah Johnson
topic: Nutrient cycling in freshwater ecosystems
grade: 10
subject: Biology
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character: Mr. Aaron Brown
topic: The role of pH in aquatic habitat health
grade: 10
subject: Biology
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