What Is Nitrogen Fixation

question 39

Multiple Choice

What is nitrogen fixation?

• A) the conversion of nitrate (NO₃⁻) into nucleic acids
• B) the incorporation of ammonia (NH₃) into amino acids
• C) the release of ammonia (NH₄⁻) from decomposing organic material
• D) the conversion of atmospheric nitrogen (N₂) into ammonia (NH₃)
• E) the conversion of ammonia (NH₃) into ammonium ion (NH₄⁺)

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