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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.
The familiar sounds of your heart are made by the heart's valves as they open and close.
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