At times, PCP use results CNS depression. At other times , it causes stimulation.How can one drug have such opposite effects ? Is alcohol a similar type of drug ? {Ans: Some drugs differ in their effects depending on the dose. Alcohol in low doses accelerates the heart, but at high doses slows down the heart rate, so it is similar to PCP in the dosage can change the response. Other factors here include individual body chemistry, presence of other medications in the system and the presence or absence of food in the stomach at the time of drug ingestion.}Anabolic steroids can act to stunt the growth of children and teens {Ans: T}What are marijuana's effects on motor coordination ? {Ans: Motor coordination is clearly impaired by use of marijuana -so that driving a car, operating tools etc. should be avoided.}one dosage form for LSD is known as blotter acid {Ans: T}The pH of a .001M NaOH (Sodium hydroxide) solution is: (a) 3 (b)11 (c) 0 (d) 14 (e) .001 {Ans: (b)11 .pH scale goes from 0 to 14. Left is more acidic, right is more basic (alkaline). 7 is neutral. Both sides are reactive