Tanu's statement is the most accurate description
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Only Tanu is correct: "We inhale air rich in oxygen."
Explanation
Anu's statement
("We inhale air") is too vague. Air is a mixture of gases including oxygen, nitrogen, and others. Saying just "air" does not capture what is important about what we breathe in.
Shanu's statement
("We inhale oxygen") is wrong. We do not inhale pure oxygen โ we inhale air, which contains about 21% oxygen along with nitrogen and other gases.
Tanu's statement
("We inhale air rich in oxygen") is correct and most precise. Air is approximately 21% oxygen โ it is rich in oxygen, not pure oxygen.
We inhale air (a mixture), not pure oxygen. The air we breathe in is rich in oxygen (~21%). Tanu is the most accurate.
CA Maninder Singh is a Chartered Accountant with 16+ years of practical experience and 20+ years of teaching experience. At Teachoo, he simplifies Accounts, Tax and GST with step-by-step examples so students can apply concepts confidently in exams and real life.
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