(i) Aluminium cans are melted down and recycled into new aluminium cans and other products made of aluminium. (ii) Newspapers and telephone books are ground up and made into newsprint, cereal boxes, cellulose insulation for keeping homes warm, paper egg cartons, and ceiling tiles. (iii) Glass bottles are crushed, melted and recycled into more glass bottles, or used along with sand and gravel in asphalt roads. (iv) Automobile scrap tires are generally chipped and burned as a fuel in place of or in addition to coal. Scrap tires are also manufactured into numerous rubber products including rubber mats and rubber bumpers. (v) Yard and food waste can be composted in your backyard. Since the compost contains plenty of nitrogen and other organic nutrients, it is great in gardens and flower beds.