Question : Microbial degradation of nitrates into atmospheric nitrogen is known as:
Option 1: Ammonification
Option 2: Nitrification
Option 3: Denitrification
Option 4: Putrefaction
Correct Answer: Denitrification
Solution : The correct answer is Denitrification.
Denitrification is the process of converting nitrates or nitrites in soil into elemental nitrogen gas. Pseudomonas, Thiobacillus, Micrococcus etc. are some common denitrifying bacteria found in atmosphere which help in completing nitrogen cycle.
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