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Where in the World Is Kolkata?
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What Is the NAACP?
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How Do You Use a Laser for Eye Surgery?
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Who was Queen Elizabeth II?
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What Was the War of 1812?
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What Are LEDs?
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What Are Phytoplankton?
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Who Was the One-Eyed Queen Who Defeated Caesar?
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Who Was Lou Castro?
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What Is Autism?
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Who Is Billie Jean King?
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What Is Ramadan?
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Can People Save Endangered Species?
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When Was the Irish War of Independence?
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Where Is the Oort Cloud?
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Who Were the Samurai?
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What Was the Great Depression?
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What Were the Intolerable Acts?
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What Happened at the Stonewall Inn?
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How Big Can a Dog Get?