They avoid dust entering the nostrils.
Dust can enter the outer ear, which can be washed just like any other body part. The eardrum prevents dust from entering the middle ear.
It stops harmful particles of dust, bacteria etc. from entering into the body
Your skin and your mucus membranes are your body's first line of defense against any pathogen whether that be dust, or a virus!
The skin is only a defense to stop bacteria from entering the body.
During a haboob (dust storm), it is important to seek shelter indoors to avoid breathing in dust and debris. Close all windows and doors to prevent dust from entering your home or building. If you are driving, pull off the road safely and turn off your lights to avoid accidents due to poor visibility.
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The hairs and the mucus inside the nose trap and collect dust, bugs and other debris and prevent it from entering the lungs.
It is to prevent dust from wood from entering your eye.
The stuff is sticky and there are tiny hairs that move sheets of it towards the back of your throat and you swallow it. Mucous has a job of trapping bacteria, pollen or even insects and it tries to prevent them from entering the body.
because the gravity is entering the body of ekonomiks....... because the gravity is entering the body of ekonomiks....... because the gravity is entering the body of ekonomiks.......
to avoid dust an decrease reflection