[tex]✎ANSWER[/tex]
Cilia- Cilia is a tiny hair that protects our nose from dust and dirt. It filters dirty air that we breath. It also protects our lungs from sickness. The dirt from the air sticks to cilia and sometime later it will be mixed with mucus and it resulted into booger.
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[tex]✎hope \: it \: helps☺︎︎[/tex]
