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symbo symbo
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7 years ago
The temperature at which thermonuclear reactions begin to convert helium into carbon (helium burning) is
   A)  15 million K.    B)  100 million K.    C)  1 billion K.    D)  1 million K.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
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papachulopapachulo
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7 years ago
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symbo Author
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