Ключевые слова: bag, black, clean, clean up the world, cleanliness, clippings, collect, dispose, dump, earth day, ecology, environment, environmental, expendable, full, garbage, garden, gardening, gather, grass, green, ground, growth, heap, illegal, junk, lawn, litter, maintenance, many, material, nature, nobody, open air, organic, outdoor, park, pile, plastic, pollution, recycle, refuse, rubbish, sack, scatter, spill, spring, tree, waste, wood,