Serious damage detected in Brazil's 2015 coffee crop

1. Giving examples, define 'complements' and Substitutes. [10] 2. Explain some reasons why demand for a product may be price-inelastic. [15] 3. Examine and discuss the impacts of an increase in the price of coffee on the market for tea using a demand and supply diagram. [15] 4. Critically discuss the external costs generated by the consumption of coffee. [20] 5. Explain the "Law of diminishing marginal utility" illustrating the coffee consumption as a key