Commercial excavation of stone or earth materials, distillation of bones, drilling for and/or removal of oil or gas; dumping, disposal, incineration or reduction of garbage, sewerage, offal, dead animals or refuse; fat rendering; hog raising; junkyards or wrecking yards; manufacturing of acid, cement, explosives, fireworks, fertilizer, gas, glue, gypsum, inflammable fluids or gases; refining of petroleum and its products; smelting of copper, iron, tin, zinc and other ores; stockyards and slaughterhouses; tanneries and other uses which might be objectionable by reason of production or emission of noise, offensive odor, smoke, dust, bright lights, vibration or involving the handling of explosive or dangerous materials.