Nitrogen Cycle As Resource


 
 
Concept Explanation
 

Nitrogen Cycle As Resource

Nitrogen Cycle

Nitrogen comprises 78 to 79 per cent of the earth’s atmosphere. It is an important constituent of plant and animal protein, which forms the structural and functional component of cells. Nitrogen is also present in DNA, RNA, vitamins, urea and alkaloids. Before studying the nitrogen cycle, you should understand the following processes.

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Sample Questions
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Question : 1

Nitrogen comprises ________________ to 79 per cent of the earth’s atmosphere.

Right Option : D
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Question : 2

Nitrogen is present in ________________________.

Right Option : D
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Question : 3

In nitrogen cycle the bacteria, which change proteins to ammonia, are known as ______________

Right Option : C
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