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    Astronomy Today Study Set 1
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    Exam 27: The Early Universe: Toward the Beginning of Time
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    Which of These Substances Must Be Primordial
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Which of These Substances Must Be Primordial

Question 33

Question 33

Multiple Choice

Which of these substances must be primordial?


A) helium
B) lithium
C) deuterium
D) beryllium
E) tritium

Correct Answer:

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