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Chemistry, 04.02.2021 01:00 elsauceomotho
How do scientists know that the universe is expanding?
A: The Doppler effect shows stars with yellow shifted light.
B: The Doppler effect shows stars with blue shifted light.
C: The Doppler effect shows stars with green shifted light.
D: The Doppler effect shows stars with red shifted light.
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How do scientists know that the universe is expanding?
A: The Doppler effect shows stars with yello...
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