Biology, 04.03.2021 18:10 itsmemichellel

There are two bright stars in a constellation. One of the stars appears red and the other star appears blue. Which of the following is the best explanation for the difference in the stars' color? The blue star must be moving toward Earth and the red star away from Earth.

The red star must be moving toward Earth and the blue star away from Earth.

The red star must have a greater surface temperature compared to the blue star.

The blue star must have a greater surface temperature compared to the red star.

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