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There are approximately 3 million unintended pregnancies in the United States each year.
The horizontal fraction bar was introduced by the Arabs.
A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.