Author Question: What event will eventually move an average star off the main sequence of the H-R diagram? A) ... (Read 38 times)

fbq8i · **on:** Jul 29, 2018

What event will eventually move an average star off the main sequence of the H-R diagram?

A) running out of hydrogen, causing gravitational influx, resulting in core temperatures high enough to begin fusing helium
B) surface cooling due to hydrogen loss
C) solar wind storms
D) its drift through space due to the gravitational attraction of neighboring giant stars

Question 2

Most white dwarfs

A) have relatively hot surfaces.
B) have relatively cool surfaces.
C) evolve into black holes.
D) are about as dense as their parent stars.