which mirror called is coverging mirror
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Convex mirror is converging mirror
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The head of the comet and the beginning of its long tail are shown. ... Comets are icy bodies in space that release gas or dust. They are often compared to dirty snowballs, though recent research has led some scientists to call them snowy dirtballs. Comets contain dust, ice, carbon dioxide, ammonia, methane and more.
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