Question

Why do we often sneeze when we inhale a lot of dust - laden air ? ​

Answer 1

We sneeze because our body throw out all the light weight dust particles

Answer 2

Answer:

this is because..when we inhale lot of dust then at that time our hairs in nostril pasaage get irritated..

Explanation:

We often sneeze when we inhale a lot of dust-laden air to expel out these foreign particles. These particles get past the hair in the nasal cavity and irritate the lining of the cavity which triggers a message to the brain. The brain instructs the nasal chamber to initiate sneezing. This is a method to remove the unwanted dust particles from the nostrils. Sneezing is a type of defense mechanism used by our body.

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