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Can metals be recycled?
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Most metals can and should be recycled if we are to save energy. Much less energy is needed to re-use scrap metals than to process metals from ores. For example, scrap steel can be added to blast furnaces in which iron is being made from iron ore. | | A blast furnace |
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Previous:
Back
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Book:
1001
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Section:
Science and Technology
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Chapter:
Materials
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