Everyday Science
According to the Big Bang Theory, the universe began to form about __________ billion years ago.
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The _____ is the largest natural source of light?
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Not a digestive enzyme?
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The sun contains _______ % mass of the solar system?
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Visible ear part?
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Which of the following statements in regard to diabetes is not correct?
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How many brains does octopus have?
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Folic acid _________
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Sound travels about ___________times faster in water than in air.
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