Question

Define Breathing. Describe the changes in air when it passes through nostrils and how it happens?​

Answer 1

Answer:

When you inhale (breathe in), air enters your lungs and oxygen from the air moves from your lungs to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathe out). This process is called gas exchange and is essential to life.

Hope this helps you.