character: Mr. Brown
topic: Effects of Acid Rain on Soil Nutrients
grade: 11
subject: Chemistry
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character: Mr. Smith
topic: Impact of Soil pH on Nutrient Availability
grade: 11
subject: Chemistry
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character: Ms. Johnson
topic: Chemical Reactions Involved in Soil Fertility
grade: 11
subject: Chemistry
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character: Dr. Lee
topic: Mitigation Strategies for Acid Rain Effects
grade: 11
subject: Chemistry
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