Ключевые слова: arrow, background, bin, bio, blue, bottle, box, can, cap, color, colorful, concept, conservation, container, discard, disposal, dustbin, earth, ecology, environment, environmental, garbage, glass, grass, green, icon, metal, natural, object, paper, park, plastic, pollution, protect, recycle, recycling, red, reduce, refuse, reuse, rubbish, save, sign, sky, symbol, throw, trash, urban, waste, yellow,