Aerobic exercise forces the body to provide extra oxygen to the muscles.
a. true
b. false

That statement is true

Aerobic exercise such as swimming and running will burn a lot of calories from our body

And in order to burn calories, our body need supply of oxygen.

That's why our heart tend to beat really fast when we do Aerobic exercise, it's because our heart need to pump a lot of blood to deliver oxygen to the muscles

Well, l think that some effective communication is, emotional barriers and lack of attention, interest distraction or irrelevance. also some physical disabilities such as hearing problems or speech difficulties.      l hope i am correct  and you good luck.