Question

Explain why air is taken in and let out during breathing the lungs always contains a residual volume of air

Answer 1

Residual Volume is important because it prevents the lungs from collapsing. ... The lungs always contain a residual volume of air so that during breathingcycle there is sufficient time for oxygen to be absorbed and for the carbon dioxide to be released.

Answer 2

$\huge\mathfrak\red{Heya\:Mate}$

$\huge{\boxed{\bold{ANSWER}}}$

During the breathing cycle, when air is taken in and let out, the lungs always contain a residual volume of air so that there is sufficient time for oxygen to be absorbed and for the carbondioxide to be released.

$\large{\bold{HOPE \:IT \:HELPS \:YOU!!!}}$