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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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The horizontal fraction bar was introduced by the Arabs.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.