Ключевые слова: active, activist, bag, bottle, care, city, clean, clean up, cleaner, cleaning, day, dirt, dirty, earth, eco, ecology, ecosystem, environment, environmental, forest, garbage, girl, grass, hand, help, nature, ocean, outdoor, park, participation, person, plastic, plastic pollution, pollution, preservation, recycle, recycling, reuse, rubbish, sand, social, social work, solution, spring, trash, volunteer, volunteering, waste, wild, worker,