Ключевые слова: background, bag, blue, bottle, concept, conservation, contamination, danger, destruction, dirty, dump, dumping, earth, eco, ecological, ecology, environment, environmental, forest, garbage, green, illegal, industrial, junk, landfill, landscape, litter, man, natural, outdoor, outside, planet, plant, plastic, pollute, polluted, pollution, problem, protection, road, save, sign, sky, summer, toxic, trash, tree, trees, waste, world,