Question

(i) How does the air necessary for breathing enter the body of a human being?
(ii) What other function is performed by this part of our respiratory system?

Answer 1

Answer:

During breathing we take air in to our lungs through the nose, and then expel it. The taking in of air rich in oxygen in to the body during breathing is called inhalation and giving out of the air rich in carbon dioxide is called exhalation. Both the process takes place regularly during breathing