Which is the next structure to contact air after it passes from the nose to the nasal cavity?

Respiratory system in humans includes a set of organs that allows a human being to breath and exchange gases throughout the body. It includes organs and tubes like nasal passage, larynx, trachea, bronchi, alveoli and lungs. The air enters the human body through two nostrils, then the air enters the nasal cavity.

The next structure to contact air after it passes from the nose to the nasal cavity is called as pharynx. It mainly directs the flow of air towards the lungs, where the oxygen replaces the carbon dioxide.

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

cuz he's blad

explanation: