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 Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.
Percentages of adolescents indicating Benefits and Costs of employment.
This chart illustrates the four quadrants in which we can place the relationships between the state