MCQ
The process of conversion of ${NO_2}^-$ to $N_2$ is called:
- ANitrification.
- BAmmonification.
- ✓Denitrification.
- DNitrogen fixation.
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$\begin{array}{|l|l|} \hline Column\,\,-I & Column\,\,-II \\ \hline A.\,\,F.\,\,W.\,\,went & 1.\,\,Kinetin \\ \hline B.\,\,E.\,\,Kurosawa & 2.\,\,Gibberellin\,\,acid \\ \hline C.\,\,Skoog\,\,and\,\,Miller & 3.\,\,Auxin \\ \hline D.\,\,Cousin & 4.\,\,Ethylene \\ \hline \end{array}$
$A - B - C - D$