Mining - WikipediaMining is extraction of valuable minerals or other geological materials from the earth usually ... This can be accomplished through chemical means such as smelting or through electrolytic reduction, as in the case of aluminium. . Extreme examples of pollution from mining activities include coal fires, which can last for years.definition of mining activities,mining activity definition | English definition dictionary | Reversomining activity definition, meaning, English dictionary, synonym, see also 'mining bee',alluvial mining' . the actions and activities assigned to or required or .
definition of mining activities