Ключевые слова: activist, adult, altruism, autumn, boy, care, casual, charity, cleaning, cleanup, clear, closeup, community, conservation, day, dust, eco, ecology, environmental, fall, glove, green, heap, help, human, illuminated, land, leaf, leafs, leisure, life, middle, natural, outdoor, park, participate, people, planet, recycling, responsibility, rubbish, save, season, trees, volunteer, volunteering, work, worker, yellow,