GyanGram
ATTEMPT · SCIENCE & TECHNOLOGY · PRELIMS 2022
Among the following crops, which one is the most important anthropogenic source of both methane and nitrous o…
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Among the following crops, which one is the most important anthropogenic source of both methane and nitrous oxide?
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• Correct Answer: B
• Rice paddies create anaerobic conditions producing methane via methanogenic bacteria; nitrogen fertilizers emit nitrous oxide.
• Other crops lack flooded methane emissions; rice is unique among options as a dual emitter.
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