Question

If a scientist was trying to classify a star, and he had information on a star's size and brightness, which other factor would be helpful?
A. Color
B. Shape
C. distance from the sun
D. Mass

Answer 1

A

Answer 2

I would say C. Size and mass are like the same thing. We know the shape of a star is well, a star. Most stars are a bright. Even though colors can differ, those are not really important in defining a star and can be related to brightness.