Question

2. Why should you breathe through your nose and not your mouth?​

Answer 1

Answer:

nose has small hair in it which filters the air and also prevents the dust particles from going inside the wind pipe or lungs

Answer 2

Small hairs are present in the nose which purifies the air we inhale. Where as if we breath/inhale through our mouth, the dust particles or the germs along with the air enters in our body.