There are approximately 3 million unintended pregnancies in the United States each year.
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Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
Carbon Orbitals
Carbon Isotope ratio
Carbon is constantly exchanged between large reservoirs in the lithosphere
