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Which property of a star is closely related to its temperature?

brightness

color

composition

size

Answer: Second option is correct.

Explanation:The property of star which is closely related to its temperature is color of the star.

Because star emit colors of various wavelength but emission of stars is completely dependent upon the temperature of that star.

So, color is closely related to its temperature.

Hence, second option is correct.

Mass - The single most important property that determines other properties of the star.

Luminosity - The total amount of energy (light) that a star emits into space.

Temperature - surface temperature, closely related to the luminosity and color of the star. Sep 4, 2018

Answer:Color