Yes, you do because you need 2 or more elements or minerals to make metals and ores are lots and lots of minerals.
No, metal ores occur naturally in the Earth.
Metal ores are used as resources from which metals may be extracted.
Metal ores are refined into metal. Metal is very useful, hence, metal ore is also useful.
Factories do not make metal ore. A refinery or smelter makes metal from metal ores.
From various minerals and ores which are mined. Which metal depends on which mineral is mined.
Those ores which contain metal in the form of oxides are called as oxide ores.
no
Yes and No, while some metal ores may indeed be vein minerals, not all vein minerals are metal ores and not all metal ores are vein minerals.
They aren't considered to be ores because ores are partly mineral and partly metal. The metal deposits are purely metal.
ores
Carbon, usually in impure form such as coal or coke, is often used to remove oxygen from metal ores.
Metal ores are metallic elements found in compounds with other elements in nature. These ores are then separated to produce pure metals.