Eighty Percent of the Stars on the H-R Diagram Are

question 6

Multiple Choice

Eighty percent of the stars on the H-R Diagram are on the main sequence, and that is because the star is in hydrostatic equilibrium due to the _____.

• A) degenerate property of hydrogen
• B) degenerate property of helium
• C) Hertzsprung-Russell Principle
• D) fusion of hydrogen
• E) fusion of helium

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