Question 1
What is the dominant factor in the life of a star?
◦ temperature
◦ gravity
◦ energy
◦ composition
◦ size
Question 2
Balance for a main sequence star is achieved when ________.
◦ gravitational collapse matches gas pressure
◦ gas pressure matches temperature
◦ temperature matches the rate of nuclear fusion
◦ nuclear fusion and fission occur at the same rate
◦ all of the above