Which option confuses gas amount and function?
Answer and explanation
Correct answer: Argon is most abundant and the main respiratory gas
The governing concept is distinguishing atmospheric abundance from biological function. Nitrogen is the most abundant gas at about 78%, but it is not the main gas used in ordinary aerobic respiration; oxygen is about 21% and is required for that process. Carbon dioxide is present in a small proportion yet affects climate. Option D confuses both facts: argon is only about 0.93%, is inert, and is not the main respiratory gas. Therefore D is correct.
Frequently asked questions
What is the correct answer to this question?
Argon is most abundant and the main respiratory gas
Why is this the correct answer?
The governing concept is distinguishing atmospheric abundance from biological function. Nitrogen is the most abundant gas at about 78%, but it is not the main gas used in ordinary aerobic respiration; oxygen is about 21% and is required for that process. Carbon dioxide is present in a small proportion yet affects climate. Option D confuses both facts: argon is only about 0.93%, is inert, and is not the main respiratory gas. Therefore D is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bills of Exchange. Topic: Important Terminology.
