Ключевые слова: background, black, black gold, blue, carbon dioxide, carbon structure, coal, combustible, combustion, dark, dirty, dusty, element, energy, energy storage, exploitation, factory, flake, fossil, fuel, geology, grill, hard, hard coal, heat, heat and power plant, heat source, industrial, industry, light bulb, mine, miner, mineral, mining, pile, pile of coal, pollution, power, production, raw material, rock, solid, solid fuel, splintered, stone, stove, texture, tungsten, tuxedo, unclean, underground,