39. We should breathe air through our nostrils and not through our mouths.

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Solution

There are fine hairs and sticky mucus inside our noses.
Fine hairs and sticky mucus filter the dust particles present in the air we breathe through our nose and do not allow them to enter our bodies.

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Similar questions

Q. Why should be breathe air through nose and not mouth?

We should breathe through our nose only and not through our mouth. Why?

Q. Why should we breathe in through the nostrils?

Q. Three friends went to the park.

They started playing and at the end of the game, all three of them were panting and breathing heavily. Sam noticed that John was breathing through his mouth so he advised him to breath through nose and not through mouth.

To this Kenneth said ' how does it matter? we will be inhaling the same air whether we breathe through nose or through mouth'.

Sam gave a reasonable explanation to make Kenneth and John understand that they should breathe through our nose and not through our mouth.

What was explanation given by Sam?

why we breathe faster after closing our nostrils for some time

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39. We should breathe air through our nostrils and not through our mouths.

There are fine hairs and sticky mucus inside our noses.Fine hairs and sticky mucus filter the dust particles present in the air we breathe through our nose and do not allow them to enter our bodies.

There are fine hairs and sticky mucus inside our noses.
Fine hairs and sticky mucus filter the dust particles present in the air we breathe through our nose and do not allow them to enter our bodies.