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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
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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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Cyanide works by making the human body unable to use oxygen.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.