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OpenStudy (anonymous):

A star has a spectrum shift exhibiting a blue shift. What can you conclude about the distance from Earth to that star? The distance is increasing. The distance is decreasing. The distance will remain unchanged. The distance varies with the temperature of the star.

OpenStudy (anonymous):

Please help yoooo'.

OpenStudy (anonymous):

Which of the following is a small star that has reached the end of its stellar evolution? Neutron star Red giant Stellar nebula White dwarf

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