How are exothermic and endothermic reactions linked in the process of refining metal ore?

Exothermic and endothermic reactions are interconnected in the refining of metal ore through the energy changes that occur during the process. In the initial stages, endothermic reactions, such as those involved in melting and separating metal from its ore, require energy input, often from heat. Conversely, exothermic reactions, such as the oxidation of impurities, release energy, which can help sustain the overall temperature needed for the refining process. Together, these reactions facilitate the efficient extraction and purification of metals.