What is the process that produces energy in the Sun for billions of years?
A B C D
fission fusion solar winds solar radiation
Question: What is the process that produces energy in the Sun for billions of years?
(A) fission
(B) fusion
(C) solar winds
(D) solar radiation

Answer: (B) fusion
Answer: (D) solar radiation
Question: What is the process that produces energy in the Sun for billions of years?
(A) fission
(B) fusion
(C) solar winds
(D) solar radiation
Answer: (B) fusion