Multiple choice

The lungs can remove the equivalent of _______ L of carbonic acid per day.

  1. 50

  2. 40

  3. 30

  4. 60

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The lungs are highly efficient at removing volatile acids like carbonic acid; they can eliminate the equivalent of approximately 30 liters of carbonic acid per day through the expiration of CO2.