What Does the Term "Hydrostatic Equilibrium" Mean in Reference to Stars

question 126

Multiple Choice

What does the term "hydrostatic equilibrium" mean in reference to stars?

• A) The pressure throughout a star is constant.
• B) The pressure within a star is sufficient to cause the star to expand at a constant rate.
• C) The gravitational force within a star is sufficient to cause the star to collapse inward at a steady rate.
• D) Each layer within a star is in balance with respect to pressure and gravity.

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