character: Mr. Alan Green
topic: Environmental Effects of Over-fertilization
grade: 9
subject: Chemistry
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character: Professor Emily Carter
topic: Impact of Nitrogen Runoff on Aquatic Ecosystems
grade: 9
subject: Chemistry
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character: Dr. Sarah Thompson
topic: Chemical Imbalances and Soil Health
grade: 9
subject: Chemistry
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character: Ms. Rebecca Lin
topic: Sustainable Agriculture Practices to Mitigate Fertilization Effects
grade: 9
subject: Chemistry
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