Ключевые слова: abstract, advertising, arrows, bicycle, bio, biology, box, bulb, co2, concept, conservation, design, earth, eco, ecology, element, elements, environment, environmental, friendly, graphic, green, home, house, icon, icons, illustration, image, leaves, message, natural, nature, organic, plant, pollution, protection, recycle, recycling, renewable, renewal, save, saving, set, signs, symbol, symbols, web,