For heat and moisture exchange.
Clears the nasal passages, because a sneeze is caused by irritation or itchiness in your nose or nasal passages.
Sneezing is important because it is a way to clear the mucus or secretions out of one's nasal passages, sinuses, or lungs.
The nose and nasal passages have hairs and mucous designed to filter the air.
nostrils
No, as they have no lungs or nasal passages.
nasal septum
Large nasal passages conserve water because there are many convolutions. These make air move back and forth quickly, and the moisture hits the convolutions and is absorbed back into the body.
deviated septum
Lets you smell and filters out germs
between the nasal passages and the diaphragm
No, clams don't have nasal passages or lungs.
the uvula