Ключевые слова: alternative, asphalt, automobile, blue, car, clean, drive, eco, ecology, electricity, energy, environment, environmental, europe, extremadura, farm, field, generation, generator, green, highway, industrial, landscape, mill, nature, plasencia, renewable, road, rural, ruta de la plata, sierra del merengue, sky, spain, speed, sustainability, sustainable, technology, traffic, traffic sign, transport, transportation, travel, turbine, vehicle, wind, windmill, windmill farm,