Ключевые слова: attention, background, bag, ban, bio, book, bottle, business, colorful, concept, contamination, design, desk, disposable, eco, ecology, education, environment, environmental, forbidden, garbage, global, handwritten, illustration, message, nature, note, notepad, office, paper, planet, plastic, pollution, poster, problem, recycle, reduce, refuse, rubbish, save, stop, table, text, trash, warning, waste, water, wood, wooden, workplace,