(a)[3]
Complete Table 3.1 by adding ticks in the boxes to indicate the possible hazards of using these substances.
(b)[2]
Explain why many people find it hard to stop smoking tobacco.
(c(i))[2]
Describe two differences between the woman’s blood alcohol concentration and the man’s blood alcohol concentration in Fig. 3.1.
(c(ii))[1]
At two hours the man’s blood alcohol concentration was 50 mg per 100 cm$^3$ of blood. State the woman’s blood alcohol concentration at two hours.
(c(iii))[1]
Calculate the gap between the man’s and the woman’s blood alcohol concentrations at two hours, using your answer from part 3(c)(ii).
(c(iv))[1]
Suggest one reason why the same volume of alcohol had different effects on the man and the woman.