Which problem does a “no smoking” sign protect nonsmokers against? a. environmental tobacco smoke b. smokeless tobacco c. emphysema d. cirrhosis what impact does alcohol have on the stomach? a. it can cause hypertension b. it can cause cirrhosis c. it can cause ulcers d. it can cause mouth cancer which disease that makes breathing difficult is causes by smoking? a. cirrhosis b. ulcers c. hypoglycemia d. emphysema which blood alcohol level is needed to be considered drunk driving im most states