Ключевые слова: activist, background, bag, bin, black, care, city, clean, collecting, communicating, concept, disposal, ecology, environment, food, garbage, gloves, grass, green, hand, holding, human, landscape, litter, male, man, nature, object, old, optimistic, outdoors, park, people, pick, picking, plastic, protection, recycling, rubber, rubbish, throwing, trash, up, volunteer, volunteering, volunteers, waste, woman,