What Causes the Outward Gas Pressure That Balances the Inward

question 9

Multiple Choice

What causes the outward gas pressure that balances the inward pull of gravity in a main-sequence star?

• A) the rapid outward flow of gas
• B) the rapid inward flow of the gas
• C) the high temperature of the gas
• D) the high density of the gas
• E) c and d

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