Ключевые слова: abstract, bituminous, black, bright, carbon, charcoal, clean, closeup, coal, combustion, dark, dirty, effect, electricity, energy, environment, exploitation, fossil, fuel, heap, heat, hot, industrial, industry, material, mine, mined, miner, mineral, organic, pattern, piece, pile, power, raw, resource, resources, rock, shiny, smoke, stack, stone, stones, structure, surface, texture, textured,