Ключевые слова: bag, clean, conservation, day, dirt, dirty, disposal, dump, dumping, eco, ecology, empty, environment, environmental, foil, forest, garbage, grass, gray, green, ground, heap, industry, junk, landfill, litter, nature, nobody, one, outdoor, packaging, park, picnic, picnickers, piece, pile, plant, plastic, pollute, pollution, problem, recycle, recycling, refuse, rubbish, street, toxic, trash, waste, white,