Ключевые слова: background, block, blue, butterfly, care, clean, concept, conservation, cube, design, earth, eco, ecofriendly, ecological, ecology, environment, friendly, grass, green, healthy, icon, idea, letter, natural, nature, planet, pollution, product, promotion, protection, rainbow, recycle, recycling, reflected, reflection, safe, sign, sky, symbol, text, white, wood, wooden, word, world,