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Because almost all galaxies show redshifted spectra, we know that - Q/A (Question and Answer)
Because almost all galaxies show redshifted spectra, we know that – Q/A (Question and Answer)
Question
Because almost all galaxies show redshifted spectra, we know that – Q/A (Question and Answer)
Test Answer
Answer:
the universe is expanding.
Recource Mastering Astronomy Chapter: 17
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