character: Mr. Tan
topic: Water quality and its importance in fish health
grade: 10
subject: Biology
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character: Dr. Smith
topic: The impact of pH levels on aquatic ecosystems
grade: 10
subject: Biology
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character: Ms. Lee
topic: Water filtration systems in fish aquariums
grade: 10
subject: Biology
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character: Mr. Kim
topic: Effects of temperature on fish respiration
grade: 10
subject: Biology
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