Ключевые слова: art, bin, bio, cable, can, color, colorful, core, ecology, electric, energy, environment, environmental, food, forest, fruit, generator, globe, green, ground, hand, icon, isolated, lab, laboratory, leaf, natural, nature, package, planet, plant, plug, pollution, pop, popart, power, recycle, recycling, research, set, shopping, soil, symbol, tag, trash, turbine, vehicle, white, world,