Ключевые слова: abstract, background, black, burning, charcoal, coal, dark, dirty, ecology, energy, environment, equipment, excavator, exploitation, extraction, factory, fire, flame, fossil, fuel, gas, geology, heap, heat, heavy, hot, industrial, industry, large, lignite, machine, machinery, manufacturing, material, mine, miner, mineral, nature, pile, pit, pollution, power, production, resources, rock, smoke, stone, texture, work, worker,