The nitrogen cycle describes how nitrogen is converted between different forms. Describe the nitrogen cycle process by completing the sentences.
1.Atmospheric Nitrogen (N_2) is converted to NH3 in a process catalyzed by .
2. NH_4+ is to NO_2- and then NO_3- in a process called .
Atmospheric nitrogen is to NH_4+ as a result of .
Nitrate is converted to N_2 in a process called .
Nitrite conversion to NH_4+ is catalyzed by .
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