<em>Answer:</em>
<em>260/2 is equivalent to (4+61)2</em>
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Functional residual capacity (FRC)is the volume of air that will remain in lungs after normal expiration.
Check for more information:
(https://en.m.wikipedia.org/wiki/Functional_residual_capacity
Functional residual capacity - Wikipedia)
<span>The basement membrane. mate.
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