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breathing with mouth is harmful for us explain why?

Posted by Srihari Reddy 8 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Bhoomika Abhi 8 years ago

Breathing with mouth is harmful for us because our nasal cavity has small hairs which stops the harmful substances and dust particles in air to enter our nasal cavity . Breathing with mouth is harmful because it does not stops harmful substances and dust particles to enter in our body

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