(a) Study Fig. 2.1, which shows information about the sources of air pollution in urban areas in Japan, India and South Korea. [Figure 2.1 presents three pie charts showing sources of air pollution in urban areas for Japan, India, and South Korea. Each chart is divided into sectors representing 'traffic', 'industry', 'domestic', 'electricity generation', and 'other'. A key explains the shading patterns for each source. For Japan, traffic is 20%, industry 30%, domestic 10%, electricity generation 30%, other 10%. For India, traffic is 40%, industry 20%, domestic 20%, electricity generation 10%, other 10%. The South Korea chart has some values plotted and needs completion.] (b) Study Fig. 2.2, which is information about traffic congestion in Gauteng, a province in South Africa. [Figure 2.2 provides a text description: "According to Ismail Vadi, a member of the Executive Council for Roads and Transport in Gauteng, traffic congestion is likely to increase in the next 25 years. The number of vehicles is expected to double and cause average speed in urban areas during peak hours to drop from the current 48km/h to 10km/h. He recently released the Integrated Transport Master Plan (ITMP25), which shows that the province's population will increase from 12.4million to 18.7 million and its working population will grow to 8.6 million, increasing rush hour passenger journeys to 25 million a day. ITMP25 plans to prioritise the use of public transport, particularly the rail network, which has lacked investment in the last 20 years. If nothing is done there will be a severe impact on the built and natural environment and the quality of lives of residents will deteriorate."]