TRUE OR FALSE: In an unbounded universe, all hydrogen will be used up in about a trillion years
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Q: What is the evidence that the universe was very uniform during its first 400,000 years?
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Q: Calculate the age of the universe when the temperature was 10¹ K.
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Q: The presence of dark energy affects to the way the Universe is expanding. Select one: True False
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Q: TRUE OR FALSE: Current mass estimates and deceleration rates tell us that our universe is closed
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TRUE OR FALSE: In an unbounded universe, all hydrogen will be used up in about a trillion years
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