EVERYDAY SCIENCE

Detailed explanation-1: -Denitrification. Denitrification is the process that converts nitrate to nitrogen gas, thus removing bioavailable nitrogen and returning it to the atmosphere.

Detailed explanation-2: -Denitrifying bacteria convert the nitrate back into nitrogen gas, which reenters the atmosphere. Nitrogen from runoff and fertilizers enters the ocean, where it enters marine food webs. Some organic nitrogen falls to the ocean floor as sediment.

Detailed explanation-3: -Denitrification is the microbial process of reducing nitrate and nitrite to gaseous forms of nitrogen, principally nitrous oxide (N2O) and nitrogen (N2).

Detailed explanation-4: -denitrifying bacteria, microorganisms whose action results in the conversion of nitrates in soil to free atmospheric nitrogen, thus depleting soil fertility and reducing agricultural productivity.

Detailed explanation-5: -The nitrogen is returned back to the atmosphere by the action of decomposers. Decomposer breaks down complex nitrogen compounds found in dead organisms, plant and animal’s waste and release back into the soil.