Nitrogen Fixation Refers to ________

question 49

Multiple Choice

Nitrogen fixation refers to ________.

• A) the conversion of organic proteins to nitrogen gas by bacteria
• B) chemical conversion of nitrogen gas to ammonia in chemical fertilizer production
• C) conversion of atmospheric nitrogen gas to ammonia or nitrates by bacteria
• D) use of atmospheric nitrogen by plants
• E) the presence of nitrogen in proteins of living organisms

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