Ключевые слова: abstract, apple, bulb, chemical beaker, climate, dustbin, eco, ecology, element, energy, enviroment, environment, flower, friendly, fuel station, gear, green, house, icon, icons, illustration, industry, isolated, leaf, leafs, mountains, natural, nature, nuclear, plug, power, protection, raining, recycle, recycling, refresh, safe hands, safe world, set, shopping bag, sun, symbol, temperature, tree, water, water drop,