There is a tendency to utilize underground space for the less ornamental purposes of civilization; there is the Metropolitan Railway in London, for instance, there are new electric railways, there are subways, there are underground workrooms and restaurants, and they increase and multiply.
Polystyrene can be naturally transparent, but can be colored with colorants. Uses include protective packaging (such as packing peanuts and CD and DVD cases), containers (such as clamshells), lids, bottles, trays, tumblers, and disposable cutlery.
A New Generation Of Plastic. Typically, the term âplasticâ will bring to mind a clear, flexible material used for the packaging of food and for other disposable applications. Plastic uses are often thought to extend only to throw-away soda bottles and cellophane wrappers.