Which describes sidestream smoke? smoke that is exhaled from a smoker's lungs. smoke that goes into the air directly from a cigarette. smoke that goes directly into a baby’s bloodstream. smoke that is inhaled by a smoker's lungs.

1is a 2 is also ai am almost 100 sure

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.