Why is oxygen considered decisive in the atmosphere despite being less abundant than nitrogen?
Answer and explanation
Correct answer: It is essential for basic processes such as respiration and combustion
The key distinction is between abundance and functional importance. Nitrogen occupies a larger share of the atmosphere, but oxygen is chemically essential for aerobic respiration in most complex organisms and supports combustion. Therefore even its smaller proportion has major biological and practical consequences. Option B is correct. Oxygen does not determine Earth’s rotation, control tides, or turn clouds solid.
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What is the correct answer to this question?
It is essential for basic processes such as respiration and combustion
Why is this the correct answer?
The key distinction is between abundance and functional importance. Nitrogen occupies a larger share of the atmosphere, but oxygen is chemically essential for aerobic respiration in most complex organisms and supports combustion. Therefore even its smaller proportion has major biological and practical consequences. Option B is correct. Oxygen does not determine Earth’s rotation, control tides, or turn clouds solid.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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