The above-the-line tuition deduction allows married couples with incomes of $130,000 or less ($65,000 for individuals) to deduct up to $4,000 in qualifying expenses, and those couples earning $130,000 to $160,000 ($65,000 to $80,000 for single taxpayers) to deduct up to $2,000.
Silexan is a new, German-developed lavender oil supplement formula that has proved very effective in the treatment of anxiety disorders. It has been clinically proven to have a good anxiolytic effect and is useful for those suffering from anxiety-related disturbed sleep.
The chemical compound silicon dioxide, also known as silica or silox (from the Latin  silex), is the oxide of silicon, chemical formula Si O 2, and has been known for its hardness since the 9th century. Silica is most commonly found in nature as sand or quartz, as well as in the cell walls of diatoms.ilicon dioxide is attacked by hydrofluoric acid (HF). HF is used to remove or pattern silicon dioxide in the semiconductor industry. Wikipedia for Schools is a selection taken from the original English-language Wikipedia by the child sponsorship charity SOS Children.