The document discusses different types of energy resources and provides an example case study on wind power in Cornwall, UK. 1) It asks the reader to rank various energy resources based on availability, cost of production, environmental impact, and effect on global warming. 2) It then discusses wind power as a renewable energy source, how wind turbines work to generate electricity, and locations in Cornwall where wind farms are located. 3) The advantages of wind power include low running costs, no carbon emissions, ability to farm land underneath, renewable source. Disadvantages include inability to control the wind, need for windy locations, higher initial costs than fossil fuels, and not everyone likes the appearance of wind farms