Answer:
ores
Step-by-step explanation:
Metals are present in nature in rocks, always with combination of other elements and for using them they go a process of separation.
Ores are the rocks from which workers extract metals.
Bauxite is one of the most common ores, from which Aluminium is obtained. Oxides and sulphides are common metals
, like aluminium silver and copper are found in great quantity in Earths crust, along minerals.
There are four types of ores according to their chemical structure:
Oxides, Carbonate ores, Sulphides, and Halides ores.
A list of important metals and their ores is shown in the table: