Ключевые слова: black, burn, carbon, coal, commodity, construction, conveyor, conveyor belt, dirty, dust, emissions, energy, fossil fuel, fossil fuels, fuel, geology, global warming, gravel, gray, grey, heavy, industrial, industrialization, industry, machine, machinery, manganese, manganese ore, material, mine, natural, open pit, ore, piles, pollution, pollution industry, power, processing, raw materials, rock, rough, site, smoke, sorting, stone, texture, transportation, transporting ore, vehicle, work,