Ключевые слова: abstract, air, background, blue, business, businessman, care, cloud, communication, concept, conceptual, continent, country, design, earth, eco, ecology, economy, environment, environmental, freedom, geography, glass, global, globe, hand, human, icon, ladder, man, manager, map, money, natural, nature, planet, plant, recycle, recycling, shine, shiny, sky, soft, sphere, sun, symbol, white, work, worker, world,