What Is the Approximate Chemical Composition (By Mass) with Which

question 49

Multiple Choice

What is the approximate chemical composition (by mass) with which all stars are born?

• A) Three quarters hydrogen, one quarter helium, no more than 2% heavier elements
• B) Half hydrogen and half helium
• C) 98% hydrogen, 2% helium
• D) 95% hydrogen, 4% helium, no more than 1% heavier elements

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