Question

The surface temperature of a star is indicated by which characteristic?

a
absolute brightness
b
color
c
shape
d
size

Answer 1

B. Color ; The hottest stars are blue and the coolest are red.

Answer 2

B. Color

Step-by-step explanation:

We can estimate the temperature of a star by looking at the color of the star.

Red stars are the least hot among stars and Blue stars are the hottest.