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Hydrostatic Equilibrium
Grade Level
Astronomy
AST.169 Hydrostatic Equilibrium
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What best connects hydrostatic equilibrium to the Sun's main-sequence lifetime?
A
Steady fusion helps maintain pressure while gravity continues pulling inward.
B
The Sun becomes stable only after all hydrogen is used up.
C
The planets keep the Sun's radius fixed by pulling equally.
D
The Sun's pressure is low in the core, so gravity cannot act.
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