Ключевые слова: abstract, architecture, background, building, buildings, business, city, clean, concept, construction, creative, design, development, earth, eco, ecological, ecology, electrical, energy, environment, environmental, friendly, future, graphic, green, illustration, modern, natural, nature, plant, power, recycle, recycling, save, saving, solar, solarpower, sustainability, sustainable, town, white, wind, world, world environment day,