Ключевые слова: background, barrel, bio, blue, brent, cap, cargo, chemical, circle, color, colorful, concept, container, crude, danger, dirty, drum, ecology, environment, export, factory, flammable, fuel, gallon, gas, gasoline, green, grunge, heap, industrial, industry, iron, metal, oil, old, order, pile, pollution, recycling, row, rusty, stack, stacked, steel, stock, storage, tank, toxic, used,