What is the vital capacity $(VC)$ of our lungs?

$A$ man breathes $12$ times in a minute. During this,he achieves $2$ times the $TLC$ (Total Lung Capacity). What is the total amount of air this man has inspired?

$A$ spirometer cannot be used to measure

Lungs are made up of air-filled sacs,the alveoli. They do not collapse even after forceful expiration,because of

Which respiratory volume or capacity has a value between $2500-3000\, ml$?

The vital capacity of the lung is equal to: (in $, ml$)