Ключевые слова: background, billboard, bin, blue, box, can, clean, cleanup, collect, color, colored, colorful, concept, conceptual, conservation, container, discard, disposal, dump, dustbin, ecology, environment, environmental, garbage, garden, glass, green, material, metal, nature, object, paper, park, plastic, pollution, recycle, recycling, red, refuse, reuse, rubbish, segregate, separate, street, symbol, trash, trashcan, urban, waste, yellow,