(a) Study Fig. 7, which shows information about coal. [Fig. 7 displays three separate charts providing information about coal. Top-right chart: "Coal reserves, top 10 countries (million tonnes)". This is a bar chart or similar representation showing: - US: 242,721 - Russia: 157,010 - China: 114,500 - Australia: 76,600 - South Africa: 48,000 - Ukraine: 33,873 - Kazakhstan: 31,300 - Poland: 7,502 - India: 56,498 (value seems misplaced or incorrect relative to others in diagram) - Serbia: 13,885 (value seems misplaced or incorrect relative to others in diagram) Bottom-left chart: "COAL PRODUCTION, TOP 10 COUNTRIES (Million tonnes)". This is a horizontal bar chart showing: - China: approx 2400 million tonnes - US: approx 1000 million tonnes - India: approx 550 million tonnes - Australia: approx 400 million tonnes - Russia: approx 300 million tonnes - South Africa: approx 250 million tonnes - Germany: approx 200 million tonnes - Poland: approx 150 million tonnes - Indonesia: approx 150 million tonnes - Kazakhstan: approx 100 million tonnes Bottom-right chart: "COST OF COAL ($ per tonne)". This is a line graph showing the price of coal from 1998 to 2008. The y-axis ranges from 0 to 140 ($ per tonne). The x-axis shows years 1998, 2000, 2002, 2004, 2006, 2008. - 1998: ~$30-35 - 2000: ~$30-35 - 2002: ~$30-35 - 2004: ~$60-65 - 2006: ~$50-55 - 2008: ~$130-135] (b) Study Photograph D, which shows a coal-fired (thermal) power station. [Photograph D (Insert) would show an image of a coal-fired power station, typically featuring large cooling towers and smokestacks.]