5. Inhaled air enters the nostrils and goes down into what organ of the body where exchange of oxygen and carbon dioxide happens.
a. trachea
b. bronchial tube
c. lungs
d. heart
![5 Inhaled Air Enters The Nostrils And Goes Down Into What Organ Of The Body Where Exchange Of Oxygen And Carbon Dioxide Happensa Tracheab Bronchial Tubec Lungsd class=](https://ph-static.z-dn.net/files/d99/fca9f18ca13cb9f65b536eabe8ca3180.jpg)