Ключевые слова: bag, bale, blue, bottle, chemical, collection, conservation, contamination, dirt, dirty, disposal, dump, ecological, environment, environmental, facility, factory, garbage, hazardous, heap, industrial, junk, junkyard, landfill, litter, material, metal, nature, outdoors, paper, pet, pile, plant, plastic, pollution, recycle, refuse, reuse, rubbish, scrap, separation, sorting, stack, sustainable, toxic, trash, treatment, used, waste,