Ключевые слова: background, bin, blue, cardboard, care, clean, color, composition, concept, conservation, contamination, copy, different, disposal, earth, eco, ecology, environment, environmental, flat, garbage, global, green, lay, litter, management, material, metal, object, paper, plastic, pollution, prevention, protection, recycle, recycling, reduction, responsibility, reuse, rubbish, save, space, sustainable, symbol, text, top, trash, view, waste, world,