Four of following are factors that must be overcome by a large molecular cloud before gravitational contraction can begin. Which one is the exception?
A) thermal energy of the gas
B) magnetic field of the ISM
C) rotation of the gas cloud
D) intense radiation from a nearby star
E) turbulence in the ISM

Question

Quizplus · Accepted Answer

Intense radiation from a nearby star does not need to be overcome for gravitational contraction to begin in a molecular cloud. Instead, it can actually hinder the formation of stars by heating and dispersing the gas. The other options (thermal energy, magnetic fields, rotation, and turbulence) are internal factors that resist gravitational collapse.

Four of Following Are Factors That Must Be Overcome by a Large