Ключевые слова: activist, altruistic, bag, care, charity, cheerful, clean, cleaning, community, concept, diverse, eco, ecology, ecosystem, environment, forest, friend, garbage, girl, grass, help, hobby, lifestyle, litter, nature, park, participation, person, picking, plastic, pollution, preservation, public, quality time, recycling, responsible, river, rubbish, social work, society, spring, team, teamwork, trash, values, volunteer, volunteering, wild, woman, woods,