Question

we must not breatheh through our mouth​

Answer 1

Answer:

yes this

answer is right

Answer 2

Answer:

Your answer is right.

Explanation:

Because there is some thought that mouth-breathers may not be getting all the oxygen they need, which can lead to fatigue and,in some situations may cause stress to the heart and lungs. In terms of dental health, breathing through the mouth can dry the oral cavity and lead to bad breath, gum disease and tooth decay.