Ключевые слова: alley, barrel, biohazard symbol, blue, chemical, chemical plant, chemistry, danger, drum, environment, epa, factory, fear, finance, fuel and power generation, gallon, garbage, garbage dump, gas, gasoline, industry, labeling, metal, natural gas, nature, objectsequipment, oil, oil industry, outdoors, pallet, pollution, radioactive, rust, rusty, steel, storage tank, technology, toxic substance, toxic waste, urban scene, yellow,