Which one of the following is a possibility for most of us in regards to breathing, by making a conscious effortA. The lungs can be made fully empty by forcefully breathings out all air from themB. One can breathe out air totally without oxygenC. One can breathe out air through Eustachian tubes by closing both the nose and the mouthD. one can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all.

Which one of the following is a possibility for most of us in regards

1.	Which one of the following is a possibility for most of us in regards to breathing, by making a conscious effortA. The lungs can be made fully empty by forcefully breathings out all air from themB. One can breathe out air totally without oxygenC. One can breathe out air through Eustachian tubes by closing both the nose and the mouthD. one can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all.
Answer» Correct Answer - D

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