Astronomers now speculate that a galaxy's shape depends on all of the following except
A)the rate of star formation.
B)the history of past collisions.
C)the mass.
D)All of the other choices may be important in determining a galaxy's shape.

Question

Quizplus · Accepted Answer

All of the other choices may be important in determining a galaxy's shape. The rate of star formation affects the distribution of gas and dust within the galaxy, which may impact its shape. The history of past collisions can also alter a galaxy's shape, depending on the direction and angle of the collisions. The mass of a galaxy can affect the gravitational forces that shape and hold it together. Therefore, all of these factors are important in determining a galaxy's shape.

Astronomers Now Speculate That a Galaxy's Shape Depends on All