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character: Nitrification Process
topic: The Step Before Denitrification
grade: 9
subject: Biology
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character: Nitrosomonas Bacteria
topic: Role in Nitrification
grade: 9
subject: Biology
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character: Nitrate Transformation
topic: From Ammonia to Nitrate
grade: 9
subject: Biology
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character: Nitrobacter Bacteria
topic: Converting Nitrites to Nitrates
grade: 9
subject: Biology
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