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Author Question: The Southern hemisphere of Mars is at A) an average elevation and is covered with impact craters ... (Read 39 times) |
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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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Excessive alcohol use costs the country approximately $235 billion every year.
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The average adult has about 21 square feet of skin.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.