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Did you know?
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.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.


