Ключевые слова: bad, bin, bottle, bottles, cans, city, concept, conceptual, contamination, dirt, dirty, dump, dumping, dustbin, ecology, environment, flora, forest, garbage, green, issue, litter, littering, load, mess, natural, nature, papers, park, people, picnic, pigs, pile, plastic, pollute, polluting, pollution, problem, recycle, rubbish, summer, tourists, trash, wastage, waste,