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)the high temperature and the high density of the gas

Question

Quizplus · Accepted Answer

The high temperature and high density of the gas in a main-sequence star cause the outward gas pressure. This pressure is crucial for balancing the inward pull of gravity, maintaining the star's stability. High temperatures lead to rapid particle movement, exerting pressure outward, while high density increases the number of particle collisions, contributing further to this outward pressure.

What Causes the Outward Gas Pressure That Balances the Inward