Ключевые слова: acid, air, aluminum, architecture, asthmatic, atmosphere, backgrounds, barrel, blue, bricks, building, built, chemical, chemistry, chimney, clean, climate, cloud, co, cold, conditioner, construction, contemporary, danger, destruction, dirty, energy, environment, factory, fog, fossil, fuel, future, gas, generation, global, industrial, industry, manufacturing, metal, nature, pipe, pollution, power, refinery, smoke, steel, technology, toxic,