(a)[3]
Discuss the benefits of intensive livestock production.
(b)[2]
Suggest why antibiotics are needed in intensive livestock production.
(c(i))[1]
State the letters of the countries in Fig. 5.1 whose 2016 antibiotic use was below the stated limit of 50 mg per kg of livestock.
(c(ii))[3]
Calculate the percentage rise in antibiotic use in country A in Fig. 5.1 from 2010 to 2016. State your answer to two significant figures.
(c(iii))[4]
Explain the origin of antibiotic resistance in bacteria.