Ключевые слова: adult, alternative, boy, caucasian, child, clean, conservation, eco, ecology, electric, electricity, energy, environment, family, farm, father, future, generating, generation, giving, global, green, industry, kid, man, mill, nature, outdoors, outside, park, people, piggyback, power, production, renewable, ride, small, son, station, sustainability, sustainable, technology, turbine, turbines, view, walking, wind, windmill,