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Breathing and Exchange of Gases question

2011 · Q17
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Breathing and Exchange of Gases question

2011 · Q17

NEETBiologyBreathing and Exchange of GasesMCQ+4 / −1
Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort?
  1. A
    One can breathe out air totally without oxygen.
  2. B
    One can breathe out air through Eustachian tube by closing both nose and mouth.
  3. C
    One can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all.
  4. D
    The lungs can be made fully empty by forcefully breathing out all air from them.
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