Ключевые слова: background, branches, brown, can, can lid, canned, canned goods, copyspace, dirty, dump, earth, ecology, environment, environmental, environmental pollution, environmental protection, floor, foliage, forest, garbage, grass, green, ground, junk, leaves, lid, litter, moos, moss, natural, nature, nobody, outdoor, park, pollution, preserve, preserve can, preserved food, protection, pull, recycle, recycling, red, refuse, rubbish, still life, tin, tin can, trash, waste,