Composition of exhaled air and detection of carbon dioxide — task. Biology CBSE Live product, Class 7 (2025-26).

Pick the odd one out:

1. Which of these is not a material used to make the lung breathing model?

2. Which organ is not directly involved in the exchange of oxygen and carbon dioxide in the lungs?

Did you find an error?

4. Composition of exhaled air and detection of carbon dioxide