Which one of the following conditions is least likely to occur if the cilia in our respiratory system are damaged? a. asthma b. pneumonia c. emphysema d. multiple sclerosis

How does drinking alcohol or using drugs put a person at risk for hiv infection? a.they improve judgment, which makes it more likely for people to engage in risky behavior. b.they impair judgment, which makes it more likely for people to engage in risky behavior. c.they impair judgment, which makes it less likely for people to engage in risky behavior. d.they improve judgment, which makes it less likely for people to engage in risky behavior.