More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.
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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
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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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The horizontal fraction bar was introduced by the Arabs.
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Everyone has one nostril that is larger than the other.
Difficulties in applying the morphological species concept
Oldowan tools are simple flake tools struck from a core.
Gate control theory. A. open gate, B. closed gate
International Economics: Theory and Policy (10th Edition)