Alveoli small balloon-like structures which are responsible for the oxygen exchange in the lungs across the membranes. These are attached to the branches of the bronchial passages. These alveoli inflate and deflate with inhalation and exhalation. Answer is C.
The answer i believe it is would be spiritual
The answer is C. 19 to 26 the actual age people reach their physical peak is 26 which therefore is C as your answer.
Nearly 23% of teens die from smoking-related causes
