Ключевые слова: background, brown, cardboard, carton, corrugated, disposable, disposal, earth, eco, ecological, ecology, environment, environmental, friendly, garbage, group, heap, industry, isolated, junk, kraft, many, material, nobody, object, old, organic, packaging, paper, pieces, pile, pollution, protect, protection, recyclable, recycle, recycling, reduce, refuse, reusable, reuse, rubbish, sheets, sorting, stack, trash, utilization, waste, white, zero,