Home Biology Breathing and Exchange of Gases Previous Year Questions Which one of the following is a possibility …
Biology Breathing and Exchange of Gases Previous Year Questions Single Correct MCQ
Published on: August 14, 2026

Which one of the following is a possibility for most of us with regard to breathing by making a conscious effort?

A
One can breathe out air totally without oxygen.
B
One can breathe out air through Eustachian tube by closing both nose and mouth.
C
One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all.
D
The lungs can be made fully empty by forcefully breathing out all air from them.

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