Q: For a star to form, what force pulls gas and dust into the center of the nebula?


Read this paragraph and choose the correct option from the provided answers:

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!.

 Choices:

- weight

- centrifugal force

- motion

- gravity


A:
gravity