Which is the correct sequence of the Nitrogen Cycle?
(a) Fixation of Nitrogen → Denitrification → Ammonification → Nitrification
(b) Ammonification → Nitrification → Nitrogen Fixation → Denitrification
(c) Nitrogen Fixation → Ammonification → Nitrification → Denitrification
(d) Nitrification → Nitrogen Fixation → Denitrification → Ammonification
(c) Nitrogen Fixation → Ammonification → Nitrification → Denitrification
Explanation
The nitrogen cycle is a natural process by which nitrogen is converted into various chemical forms. It begins with nitrogen fixation where atmospheric nitrogen (N₂) is converted into ammonia (NH₃) by bacteria. Next, ammonification occurs, converting organic nitrogen into ammonia. Then, nitrification transforms ammonia into nitrites and nitrates. Finally, denitrification releases nitrogen gas back into the atmosphere.
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