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Question 3. [30 marks] The life cycle assessment (LCA), as an environmental decision-making tool, has been gaining significant attention in recent years owing to its advantageous impacts from energetic as well as environmental perspectives. List its three main components (or steps), explain (briefly) the main activities performed at each step and draw a schematic representation showing the hierarchy between these steps. Then, on that schematic, list three ideas for each analysis-related step considering an LCA study being conducted on the conversion of wind into electrical energy. 13 marks for listing, 2 marks for explaining each step, 3 marks for schematic drawing, 2 marks for providing idea/analysis step