Ключевые слова: background, bag, bottle, clean, concept, conservation, contamination, destruction, dirty, disposal, dump, earth, ecological, environment, forest, garbage, grass, green, ground, heap, illegal, industry, junk, junkyard, landfill, landscape, litter, mess, nature, outdoors, paper, park, pile, plastic, pollution, problem, recycle, rubbish, scrap, toxic, trash, tree, urban, waste, wood,