Your Answer Is...
It is a barrier to listening because if you're thinking of something else, than you're not paying attention to the person whose talking.
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My Brainly Name: AnonymousGiantsFan
Answer:
the answer has to be A
Explanation:
because you should always check the victim first then call for help and then look around
Answer:A
Explanation:These are called Alveoli.They inflate when a person inhales and deflates when a person exhales. During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs.
