To produce 1 kg aluminum from bauxite ore (mining area), industry needs 220600 kJ energy. To produce 1 kg of aluminum from recycled aluminum cans, industry needs 5060 kJ energy. What is the energy saving when recycling is chosen to produce aluminum from aluminum cans? (1 kJ=0.00028 kWh. 1kWh=0.76 TL). Do you think empty aluminum cans must be valued based on your finding? (Note that 77 empty Al cans weigh 1 kg).

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