Q: What is the conversion of metals from their ores to more useful forms called? Read this paragraph and choose the correct option from the provided answers: Summary The conversion of metals from their ores to more useful forms is calledmetallurgy, which consists of three general steps: mining, separation and concentration, and reduction. Settling and flotation are separation methods based on differences in density, whereas pyrometallurgy is based on a chemical reduction at elevated temperatures, and hydrometallurgy uses chemical or electrochemical reduction of an aqueous solution. In pyrometallurgy, a reductant must be used that does not form stable compounds with the metal of interest. In hydrometallurgy, metals are separated via the formation of metal complexes. Choices: - thermodynamics - nanotechnology - crystallography - metallurgy A:
A:
metallurgy