Ключевые слова: abstract, background, banner, biology, business, clean, concept, connection, conservation, creative, day, design, digital, earth, eco, ecology, energy, environment, environmental, forest, friendly, global, globe, graphic, green, growth, icon, icons, landscape, leaf, media, natural, nature, network, organic, outdoor, planet, plant, protect, protection, recycle, save, sky, society, strategy, symbol, technology, tree, world,