According to the diagram below, the process by which nitrogen moves from the land to the atmosphere primarily after microbes or fossil fuel combustion converts various forms of nitrogen back to N₂, as at the yellow asterisk (*), is known as A)cyclolysis. B)denitrification. C)eutrophication. D)photodissociation.

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Denitrification is the process by which various forms of nitrogen, such as nitrate (NO3-) and nitrite (NO2-), are converted back to atmospheric nitrogen (N2) by microbes or fossil fuel combustion. This process primarily occurs in oxygen-limited environments such as wetlands or soil with poor drainage.

According to the Diagram Below, the Process by Which Nitrogen