Ключевые слова: addiction, air, air pollution, anatomy, art, background, bronchi, carbon, carbon dioxide, change, climate, copy space, danger, dark, death, design element, dioxide, dirty, disease, ecology, environment, footprint, gas, global, habit, health, industrial, industry, kill, lung, lungs, medicine, nature, nicotine, organ, oxygen, ozone, poison, pollution, protection, recycling, reduction, risk, smoke, smoker, symbol, tar, technology, unhealthy, white,