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Why is breathing through the nose better than through the mouth?

AAir turns into carbon dioxide there
BAir gets extra oxygen added there
CAir is warmed, moistened and filtered
DNose removes all germs from blood
Answer & Solution
Correct answer: C. Air is warmed, moistened and filtered
The nasal cavities warm and humidify the air, and mucus traps dust particles before air reaches the lungs.
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