character: Dr. Lee
topic: Safety Regulations for Food Additives
grade: 11
subject: Chemistry
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character: Mrs. Johnson
topic: Chemistry of Food Preservation
grade: 11
subject: Chemistry
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character: Professor Smith
topic: Toxicology of Food Additives
grade: 11
subject: Chemistry
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character: Ms. Brown
topic: Natural vs. Synthetic Food Additives
grade: 11
subject: Chemistry
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