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doit_the_clown doit_the_clown
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The most abundant material in the universe is
   A)  nitrogen.    B)  carbon dioxide.    C)  water.    D)  hydrogen.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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discovererdiscoverer
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