Choose from the list below for the following questions.You may use a choice more than once.
-Which one provided the energy that made the Sun hot in the first place?
A)H fusion by the proton-proton chain
B)H fusion by the CNO cycle
C)helium fusion
D)matter-antimatter annihilation
E)gravitational contraction

Question

Quizplus · Accepted Answer

Gravitational contraction provided the energy that made the Sun hot in the first place, which caused nuclear fusion reactions to start and maintain the Sun's heat and light.

Choose from the List Below for the Following Questions