Which statement is correct in comparing nitrogen and oxygen?
Answer and explanation
Correct answer: Nitrogen is more abundant and oxygen is more directly needed for respiration
Nitrogen makes up the largest share of dry air, about 78%, whereas oxygen makes up about 21%. Although nitrogen is more abundant, oxygen is the gas directly used by humans and many animals during aerobic respiration. The question compares both amount and function, so option A is correct. Options B and C give false proportions, and D contradicts the known composition of air.
Frequently asked questions
What is the correct answer to this question?
Nitrogen is more abundant and oxygen is more directly needed for respiration
Why is this the correct answer?
Nitrogen makes up the largest share of dry air, about 78%, whereas oxygen makes up about 21%. Although nitrogen is more abundant, oxygen is the gas directly used by humans and many animals during aerobic respiration. The question compares both amount and function, so option A is correct. Options B and C give false proportions, and D contradicts the known composition of air.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bank Reconciliation Statement.
