Ключевые слова: air, alternative, business, car, care, change, choice, clean, concept, conservation, cut, drive, eco, ecology, electric, electricity, energy, environment, environmental, flower, friendly, fuel, global, green, healthy, hybrid, leaf, mode, motor, natural, nature, pollution, power, protection, recycle, renewable, save, symbol, transport, transportation, travel, van, vehicle, warming, wheel, wooden,