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Biology, 25.06.2019 06:30 haloom9698

The fact that astronomers have observed billions of stars clustered together is evidence that -- a. stars must have some sort of attraction for each other. b. all sections of space have the same numbers of stars. c. galaxies are probably older than the stars that make them up. d. the distance from one star to another varies, depending on the temperature of the star.

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