Most interstellar clouds remain stable in size because the force of gravity is opposed by ________ within the cloud. Naim 13:30 Astronomy Chapter 6 Most interstellar clouds remain stable in size because the force of gravity is opposed by ________ within the cloud. A) degeneracy pressure B) radiation pressure C) stellar winds D) thermal pressure Answer: D Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+