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How Did the States Get Their Shapes?
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How Does WiFi Work?
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How Old Is Origami?
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Why Is It Colder on Clear Nights Than on Cloudy Nights?
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What Causes Mudslides?
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How Does Technology Change Lives?
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Who Was Evel Knievel?
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Why Was Morse Code Invented?
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Where Is Morocco?
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What Is Pride Month?
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Who Designed the Seat Belt?
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Why Is 2011 the Year Of the Rabbit?
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Where Does the Sidewalk End?
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Who Is Serena Williams?
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How Many People Are on Earth?
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Who Was the Surfer of the Century?
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