MCQ
At rest, an adult human inhales about
  • $6 - 8$ litres of air per minute.
  • B
    $10 - 12$ litres of air per minute.
  • C
    $12 - 14$ litres of air per minute.
  • D
    $14 - 16$ litres of air per minute.

Answer

Correct option: A.
$6 - 8$ litres of air per minute.

At rest, an adult human inhales about $6 - 8$ litres of air per minute, of which two - third gets to the alveoli thus, gas exchange takes place and the rest remains in the air passages.

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