Multiple choice general knowledge

In 24 hours, An average human Breathe ---- cubic feet AIR

  1. 438

  2. 538

  3. 638

  4. 738
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The average human breathes about 12-16 times per minute, with each breath containing approximately 0.5 liters of air. Over 24 hours, at 15 breaths per minute, this equals 15 × 60 × 24 × 0.5 = 10,800 liters, which converts to approximately 381 cubic feet. However, during activity breathing increases, raising the daily average to about 438 cubic feet.

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