SOLVED

277) Most deaths linked to use of psychoactive substances involve narcotic drugs such as heroin. A) True B) False 278) The most widely and easily accessible substances—tobacco and alcohol—cause more deaths through sickness and accidents than all illicit drugs combined . A) True B) False 279) Legal substances cause more deaths through sickness and accidents than all illicit drugs combined. A) True B) False 280) The use of heroin is rising rapidly on North American campuses. A) True B) False 281) The prevalence of tobacco use has increased slightly over the past few decades. A) True B) False 282) Extreme intoxication from use of alcohol, opiates, and cocaine can result in death. A) True B) False 283) One incident of drinking to excess at a wedding or a party qualifies as drug abuse. A) True B) False 284) Potentiation is physical habituation to a drug so that with frequent usage, higher doses are needed to obtain similar effects. A) True B) False 285) Abstinence syndrome occurs when a dependent person slowly stops using a particular substance. A) True B) False 286) The DSM-IV considers substance abuse and dependence to be distinct. A) True B) False