The source of energy for non-biological nitro | vedclass

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(A) Non-biological nitrogen fixation occurs through physical processes in the atmosphere. Lightning and cosmic radiation provide the high energy requi

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By ionizing events such as lightning and effect of cosmic rays

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(A) Non-biological nitrogen fixation occurs through physical processes in the atmosphere. Lightning and cosmic radiation provide the high energy required to break the strong triple covalent bonds of atmospheric nitrogen $(N_2)$. This energy allows nitrogen to react with oxygen to form nitrogen oxides,which eventually dissolve in rainwater to form nitrates,contributing to the nitrogen cycle.

Column $I$	Column $II$
$A$. Thiobacillus	$1$. Free-living nitrogen-fixing cyanobacteria
$B$. Nitrosomonas	$2$. Denitrification
$C$. Nostoc	$3$. Free-living aerobic nitrogen-fixing bacteria
$D$. Azotobacter	$4$. $NH_{3}$ to Nitrite

The source of energy for non-biological nitrogen fixation is

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