Description
Iron Ore: Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite, hematite (FE).
Copper: Copper is a chemical element with the symbol Cu. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. Copper is one of the few metals that can occur in nature in a directly usable metallic form (native metals). Copper is too soft to be used alone for most applications but people discovered long ago that it can be mixed with other metals to form strong alloys. The most famous examples is mixing copper with tin to make bronze, or with zinc to form brass. Most copper is used in electrical equipment such as wiring and motors. This is because it conducts both heat and electricity very well, and can be drawn into wires. It also has uses in construction (for example roofing and plumbing), and industrial machinery (such as heat exchangers).
Paper: material manufactured in thin sheets from the pulp of wood or other fibrous substances, used for writing, drawing, or printing on, or as wrapping material. Scrap paper that is partly used or is of poor quality but that be used for unimportant things. Paper suitable for recycling is called “scrap paper“, often used to produce molded pulp packaging. The industrial process of removing printing ink from paper fibers of recycled paper to make deinked pulp is called deinking. Used scrap paper can be utilized to reuse it as packing material, for notes and memos and other recycled items.
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