Question

The Sun is stable because the force of gravity is balanced by the thermal pressure created by the reactions in its core. The Sun will remain stable
A) As long as the outer surface of the Sun remains solid

B) As long as there is a sufficient source of energy within the Sun.

C) As long a the planets continue orbiting the Sun

D) As long as the gravity of Jupiter does not act on the Sun

Answer 1

--------- 5.5 billion years

Answer 2

Long as there is a sufficient source of energy within the Sun.