Ключевые слова: background, bottles, contamination, day, dirt, dirty, dump, earth, ecological, ecology, environment, environment pollution, environmental, forest, foulness, garbage, grass, green, heap, impurity, industry, junk, junkyard, mess, natural, nature, nobody, old, outdoor, pile, plastic, polluting, pollution, protection, recycling, rubbish, summer, sunshine, trash, tree, waste,