Question

A star is born when gas and dust from a nebula become so dense and hot that nuclear fusion starts. Which of the following forces is responsible for the formation of a star?

A.
magnetism
B.
gravitation
C.
friction
D.
electromagnetic energy

Answer 1

B. gravitation

Step-by-step explanation:

if you are confused he basically means .B gravitation lol

Answer 2

gravitation, In the densest portion of the nebula, gravity exerts force on nearby particles of gas and dust. This area of the nebula becomes denser as the particles of gas and dust are pulled closer and closer together by the growing gravitational force.