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Did you know?
About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
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Excessive alcohol use costs the country approximately $235 billion every year.
Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).