Ключевые слова: activist, adult, altruism, boot, boots, bottle, care, caring, clean, cleaning, close, closeup, collect, collecting, conservation, contamination, country, dump, eco, ecologic, ecological, ecology, ecosystem, environment, environmental, female, field, garbage, garden, girl, grass, green, hand, hands, help, helping, hiker, lawn, litter, mountain, mountaineer, natural, nature, outdoor, outdoors, outside, park, people, person, pick up, picking, plastic, preservation, protection, recycle, recycling, responsibility, rubbish, service, services, social, trash, up, volunteer, volunteering, volunteerism, woman, women, work, working, young,