Which of the following characteristics of stars primarily determines a star's color?
brightness
distance from earth
temperature
size

The characteristic of stars that primarily determines a star's color is temperature. The correct answer between all the choices given is the third choice. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

Temperature

Explanation:

The colour of a star determines by its temperature.

According to the Wein's displacement law,

The wavelength of maximum intensity of emission is inversely proportional to the absolute temperature of the black body. Wavelength corresponds to the colour of light emitted by the star.

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

answergravity;