true or false
1.A physical or psychological need for a drug or other substance called withdrawal
2. Headaches, nausea, and fatigue are all physical symptoms of nicotine withdrawal
3. People who reach for some form of tobacco when they begin certain activities have a physical dependence.
4. Side stream smoke is smoke that is exhaled from the lungs of smokers
5. Mainstream smoke is smoke that comes from the burning tip of a cigarette
True
True
True
True
True