Final answer:
The correct answer is option f) Answers b and d are correct. In exhaled air, the concentrations of both CO₂ and N₂ are higher compared to inhaled air.
Step-by-step explanation:
The correct answer is option f) Answers b and d are correct.
In exhaled air, the concentrations of both CO₂ and N₂ are higher compared to inhaled air.
For example, when we breathe in air, we take in oxygen (O₂) and release carbon dioxide (CO₂) with each breath. This is because our cells use up oxygen during cellular respiration, producing carbon dioxide as a waste product, which is then carried back to the lungs and exhaled.