Ключевые слова: alphabet, background, ball, basket, bin, cleaning, color, concept, crumpled, disposal, eco, ecological, ecology, environment, environmental, garbage, grass, green, litter, messy, metal, nature, paper, papers, pollution, protection, recycle, recycling, reuse, rubbish, save, symbol, throwing, trash, trashcan, used, waste, wastebasket, wastepaper, wood,