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Orlov [11]
4 years ago
10

How do scientists know that the universe is expanding?

Biology
2 answers:
hodyreva [135]4 years ago
8 0

Answer: C: The Doppler Effect shows stars with red shifted light

Explanation:

Ilia_Sergeevich [38]4 years ago
6 0

Answer:C. The Doppler effect shows stars with red shifted light.

Explanation: Evidence

Astronomers have discovered that, in general, the further away a galaxy is, the more red-shifted its light is. This means that the further away the galaxies are, the faster they are moving and expanding.

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