Multiple choice

What does nitrification mean?

  1. Liquifaction of nitrogen

  2. Convert the atmospheric nitrogen to effective nitrogen compound

  3. Production of nitrogen from air

  4. Conversion of nitrogen to nitric acid
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nitrification is the biological oxidation of ammonia to nitrite then nitrate by soil bacteria. However, the broader meaning (and what option B describes) is the conversion of atmospheric nitrogen (N2) into biologically usable nitrogen compounds that plants can absorb.

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