What force(s) are responsible for the collapse of an interstellar cloud?
A) nuclear
B) gravity
C) electric
D) magnetic
E) both c and d

Question

Quizplus · Accepted Answer

The force responsible for the collapse of an interstellar cloud is gravity. It is the mutual attraction between gas particles that causes the cloud to collapse under its weight, eventually leading to the formation of a protostar. While electric and magnetic forces also play a role in the dynamics of interstellar clouds, they are not the primary force responsible for their collapse. Nuclear forces are only important in the later stages of stellar evolution, when fusion reactions power the star.

What Force(s) Are Responsible for the Collapse of an Interstellar