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What is nitrogen cycle?
How to draw its diagram?
The nitrogen cycle is a biogeochemical cycle in which nitrogen is converted into multiple forms. It is a continuous or an endless cycle which helps us understand how nitrogen moves from the atmosphere to earth, through soils and back to the atmosphere.
Nitrogen cycle has four major events-
1. Nitrogen fixation
2. Assimilation
3. Nitrification
4. Denitrification
Process
First of all nitrogen-fixing microorganisms capture atmospheric nitrogen by converting it to ammonia (NH3)which can be taken up by plants and used to make organic molecules. Now, the nitrogen-containing molecules are passed to animals when they eat plants. They may be embodied in the animal's body or broken down and excreted as waste, such as the urea found in urine.
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