Ключевые слова: abstract, alternative, background, brown, closeup, collection, concept, conservation, conversion, cut, cycle, disposal, ecological, ecology, energy, environment, environmental, friendly, from, garbage, heap, industry, information, letter, light, made, nature, new, out, paper, pile, pollution, processing, protection, recyclable, recycle, recycled, recycling, reuse, rough, shape, sheets, surface, swatch, technology, trash, waste, wastepaper, word,