Ключевые слова: adult, agriculture, alternative energy, blue, caucasian ethnicity, choice, cloud, day, development, efficiency, electricity, engineer, environment, environmental conservation, environmentalist, equipment, farm, focus on foreground, fuel and power generation, generator, grass, industry, innovation, landscape, looking, meadow, men, nature, occupation, one person, outdoors, power supply, propeller, rear view, recycling, renewable energy, rural scene, sky, smiling, spinning, sustainable resources, technology, turning, wind, wind power, wind turbine, windmill, women, working,