The CNO Cycle Is the More Efficient Mechanism for Hydrogen

question 59

Multiple Choice

The CNO cycle is the more efficient mechanism for hydrogen fusion only in stars more massive than 1.3-1.5 M_SUN because of the greater ________ their cores.

• A) concentration of heavy elements like carbon in
• B) turbulence in
• C) abundance of hydrogen in
• D) temperature of
• E) rotation speed of

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Deviation IQ

Standard score with a mean of 100 and a standard deviation of 15. As the name implies, these scores are generally used in intelligence testing.

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The consistency of a test's results when administered to the same individuals at different points in time.

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