Last year, the House was in session for 118 days prior to Election Day and 135 days total. In total, Congress passed 65 laws, the fewest in history. With this almost non-existent work schedule, it appears that the record is not only in doubt but could be obliterated.
Rating Newest Oldest. Best Answer: Common glass contains about 70-72 weight % of silicon dioxide (SiO2). The major raw material is sand (or quartz sand) that contains almost 100% of crystalline silica in the form of quartz.
Glass Facts. Glass is 100% recyclable and can be recycled endlessly without loss in quality or purity. Glass is made from readily-available domestic materials, such as sand, soda ash, limestone and âcullet,â the industry term for furnace-ready recycled glass. The only material used in greater volumes than cullet is sand.