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20 April, 00:32

How is nitrogen returned to the atmosphere during the nitrogen cycle?

a.

It is returned to the atmosphere in a process called nitrogen fixation.

b.

It is returned to the atmosphere through denitrification.

c.

It is returned to the atmosphere through cellular respiration.

d.

It is returned to the atmosphere through evapotranspiration.

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  1. 20 April, 03:10
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    b. It is returned to the atmosphere through denitrification. Denitrification is the decomposition of compounds which contain nitrogen by denitrifying bacteria found in soil. Once the bacteria have decomposed the compounds, nitrogen is the byproduct released into the air.
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