character: Dr. Emily Carter
topic: Oxygen Availability in Soil
grade: 11
subject: Science
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character: Professor Alan Greene
topic: The Importance of Oxygen for Soil Microorganisms
grade: 11
subject: Science
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character: Ms. Rachel Jenkins
topic: Oxygen and Nutrient Cycling in Ecosystems
grade: 11
subject: Science
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character: Mr. John Smith
topic: Impact of Oxygen Levels on Plant Growth
grade: 11
subject: Science
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