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 glass is taken to a manufacturing or recycling plant where it is broken up into smaller pieces known as cullet. The cullet is crushed, sorted, cleaned, and prepared to be mixed with other raw materials. When glass is produced from virgin materials, it requires high temperatures to melt and combine all the ingredients.