Nitrogen is returned back to the atmosphere in the nitrogen cycle by the process of________.

Nitrification

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Nitrogen fixation

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Ammonification

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Denitrification

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Solution

The correct option is D Denitrification
Denitrification is the microbial process of reducing nitrate and nitrite to gaseous forms of nitrogen, principally nitrous oxide $(N_{2} O)$ and nitrogen $(N_{2})$ . A large range of microorganisms like Pseudomonas denitrificans can denitrify.

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Nitrogen is returned back to the atmosphere in the nitrogen cycle by the process of________.

The correct option is D DenitrificationDenitrification is the microbial process of reducing nitrate and nitrite to gaseous forms of nitrogen, principally nitrous oxide (N2O) and nitrogen (N2). A large range of microorganisms like Pseudomonas denitrificans can denitrify.

The correct option is D Denitrification
Denitrification is the microbial process of reducing nitrate and nitrite to gaseous forms of nitrogen, principally nitrous oxide $(N_{2} O)$ and nitrogen $(N_{2})$ . A large range of microorganisms like Pseudomonas denitrificans can denitrify.