Ключевые слова: arrow, background, basket, beautiful, bin, bucket, can, clean, color, colorful, concept, conceptual, conservation, container, copy, copyspace, cycle, eco, ecological, ecology, environment, environmental, fence, future, garbage, global, icon, idea, metal, natural, nature, object, one, peace, plastic, protect, protection, recycle, recycling, reuse, save, shape, sign, symbol, trash, waste, white, wooden,