Please answer the following question: Answer the following question given this paragraph: For a star to form, gravity pulls gas and dust into the center of the nebula. As the material becomes denser, the pressure and the temperature increase. When the temperature of the center becomes hot enough, nuclear fusion begins. The ball of gas has become a star!. Q: For a star to form, what force pulls gas and dust into the center of the nebula? Choices: - weight - centrifugal force - motion - gravity A:
A:
gravity