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Aluminium alloys are used in aircraft to increase weight.
Copper is a poor conductor of heat.
Zinc is used in galvanizing to prevent corrosion.
Recycling metals always leads to reduced energy consumption compared to traditional metal production.
Recycling metals conserves raw materials such as haematite and bauxite.
No energy is used in the transport of ores and processing of ores when recycling metals.
Recycling reduces energy use in the manufacture of aluminium because it requires less electric current.
Recycling reduces the usage of raw materials like coal for coke in the extraction of iron.
Recycling reduces pollution by emitting less carbon dioxide from both aluminium smelting and blast furnace operations.
Recycling increases pollution due to more lorries and ships carrying raw materials.
Recycling causes more local pollution due to increased traffic on local roads to recycling centers.
Sorting materials for recycling is a quick and straightforward process.