Ключевые слова: bag, black, boy, business, caucasian, child, cleaning, collecting, concept, disposal, dump, ecological, elementary, environmental, equipment, garbage, industry, lifestyle, litter, male, multiracial, people, person, plastic, pollution, recycle, recycling, renewable, responsibility, reuse, rubbish, schoolboy, sustainable, team, teamwork, technology, three people, trash, unaltered, waste, work, young,