The major applications of copper are in electrical wires (60%), roofing and plumbing (20%) and industrial machinery (15%). Copper is mostly used as a pure metal, but when a higher hardness is required it is combined with other elements to make an alloy (5% of total use) such as brass and bronze. A small part of copper supply is used in production of compounds for nutritional supplements and fungicides in agriculture. Machining of copper is possible, although it is usually necessary to use an alloy for intricate parts to get good machinability characteristics. COUNT 5
QSN1 What percentage of copper is used in electrical wires? ANS1 60% QSN2 What percentage of copper is used in roofing and plumbing? ANS2 20% QSN3 What percentage of copper is used in industrial machinery? ANS3 15% QSN4 What property does combining copper with brass or bronze create? ANS4 hardness QSN5 What is a metal that copper is combined with to create a greater hardness? ANS5 brass