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Shivani Soni from KENDRIYA VIDYALAYA NO 1, asked a question
Subject: Science , asked on 5/12/15

what do we often sneeze when we inhale a lot of dust laden air ?

EXPERT ANSWER

Meetu_M , Meritnation Expert added an answer, on 9/7/10

Sneezing expels the foreign particles from the inhaled air, so that only clean air enters our body. It usually occurs because of the irritation in the upper breathing passage. This irritation happens when we inhale some unwanted particles and they get trapped in our nasal cavity. Smoke, dust, pollen, etc. are some of the unwanted particles that may cause sneezing.

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Estuti Shukla From Sardar Patel Vidyalaya, added an answer, on 24/11/10
13 helpful votes in Science

we sneeze because the dust enters in the body and sometimes stick in contact to the surface of the skin that is nose this causes itching and to escape the foriegn particles we sneeze. 

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Karthikeyan.g , added an answer, on 8/10/12

 The air around us has a various types of unwanted particles, such as amoke, dust, pollens etc. When we inhale, the particles get trapped in the hair present in our nasal cavity. Howeever, sometimes these particles may get pass the hair in the nasal cavity. Then they irritate the lining of the cavity, as a result of which we sneeze. Sneezeing expels these foreign particles from the inhaled air and a dust - free, clean air enters our body.

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ariyageorge... , added an answer, on 1/10/11

we sneeze cauze we like to sneeze

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