Question

The air that always remains in the lung even after forceful expiration is called............ It is about ........​

Answer 1

Answer:

Oxygen is the correct answer for your question.

Answer 2

Answer:

The air that always remains in the lung even after forceful expiration is called residual volume. It is about The volume of air that cannot be expelled.

hope it helpss...

Mark me as brainliest....