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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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More than 4.4billion prescriptions were dispensed within the United States in 2016.