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the open-content textbooks collection that anyone can edit.
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The Physics Study Guide is meant as a supplement to a year-long freshman-level physics course with a trigonometry prerequisite.
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Small Numbers helps children count to ten and learn the meaning of numbers by pointing out real-life situations in which they play a role.


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Paella de Marisco (seafood paella) is the world's most popular paella recipe. It emerged in its modern version in Spain's Valencian region in the early 1800s. Prior to the 19th century, the ingredients for seafood paella varied greatly with the most unusual being eel.


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