Ключевые слова: activist, avoid, background, bag, black, bottle, care, clean, cleanup, collect, collecting, concept, dirty, disposal, earth, eco, ecological, ecology, environment, environmental, forest, friendly, garbage, garbage collection, gloves, grass, green, hand, holding, man, nature, object, outdoor, park, people, person, picking, plastic, pollution, problem, protection, recycle, recycling, reuse, rubbish, save, trash, up, volunteer, waste,