What does nitrogen fixation show about atmospheric nitrogen?
Answer and explanation
Correct answer: Atmospheric nitrogen is less directly active but becomes useful after conversion in biological cycles
The governing concept is the nitrogen cycle and biological nitrogen fixation. Atmospheric nitrogen exists mainly as N₂, whose strong triple bond makes it unavailable for direct use by most plants. Nitrogen-fixing bacteria, often in association with legume roots, convert it into ammonia or related compounds that can enter soil nutrients and food chains. Thus A is correct; nitrogen does not behave like oxygen in respiration and does remain in air.
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What is the correct answer to this question?
Atmospheric nitrogen is less directly active but becomes useful after conversion in biological cycles
Why is this the correct answer?
The governing concept is the nitrogen cycle and biological nitrogen fixation. Atmospheric nitrogen exists mainly as N₂, whose strong triple bond makes it unavailable for direct use by most plants. Nitrogen-fixing bacteria, often in association with legume roots, convert it into ammonia or related compounds that can enter soil nutrients and food chains. Thus A is correct; nitrogen does not behave like oxygen in respiration and does remain in air.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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