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.
The majority of common bottle glass is soda-lime glass which is primarily composed of silica, soda (aka soda-ash) or potash, and lime - the latter two ingredients often referred to as the alkalies (Hunter 1950; Toulouse 1969; Munsey 1970).