Question

Exhaled air has more percentage of CO₂ than inhaled air.

• A. True
• B. False

Answer 1

The correct option is A True

Respiration in animals:

1. The percentage of CO2 in inhaled air is 0.04% whereas in exhaled air it is 4.4%.
2. Therefore, we can say that exhaled air has more percentage of carbon dioxide than in the inhaled air.
3. When we exhale, the composition of the air remains almost the same as the air we inhale, only the percentage of carbon dioxide and oxygen changes.

Final answer: The given statement is true.