Ключевые слова: accumulator, art, bin, bulb, can, canister, car, color, colorful, contour, energy, environment, environmental, forbidden, fuel, gas, global, globe, hand, icon, isolated, lamp, lightning, line, linear, liquid, natural, nature, no, outline, planet, plant, plastic, pollution, pop, popart, protection, recycle, recycling, sea, set, sign, stop, symbol, tank, trash, waste, world,