Question

1) If a star's temperature were doubled, its new luminosity would be _____ the original luminosity.

A) 32

B) 8

C) 16

D) 2

2) The source of fuel used to make the sun shine is _________.

A) uranium

B) oil

C) hydrogen

D) coal

Answer 1

2) The source of fuel used to make the sun shine is hydrogen
Answer: c