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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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People about to have surgery must tell their health care providers about all supplements they take.
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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.