Why is it more effective to breathe through the nose compared to the mouth?

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Solution

The major reasons why breathing is more effective through the nose is as follows:
a) Nose filters the inhaled air with the help of fine hairs and mucus.
b) Nose adds moisture and warmth to inhaled air for smoother entry to the lungs.
c) Nasal breathing, unlike mouth breathing, allows more oxygen to reach the tissues which require oxygen.

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