Ключевые слова: background, bag, black, care, clean, cleaning, color, conservation, contamination, door, doorway, earth, eco, ecology, entrance, environment, environmental, floor, garbage, housecleaning, household, housekeeping, housework, hygiene, junk, litter, material, nobody, object, orange, plastic, pollution, prevention, protection, recycle, recycling, reduction, renewable, resources, responsibility, reuse, save, sorting, trash, types, wall, waste,