Physics, 18.07.2019 17:30, 1462264

When a light source like a star or group of stars is moving away from the earth, the wavelengths of the light change, and a is observed. a. blue shift b. red shift c. ozone effect d. all of the above e. none of the above

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When a light source like a star or group of stars is moving away from the earth, the wavelengths of...