Ключевые слова: alternative, beautiful, big, blue, care, close, cloud, conservation, detail, earth, ecology, electrical, electricity, energy, environment, environmental, environmentally, fan, farm, friendly, generate, generator, global, green, landscape, large, line, natural, nature, power, red, renew, renewable, resource, simple, sky, sunrise, sunset, sustainable, technology, turbine, warming, wind, windmill, windturbine, wooden,