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cestrela7 [59]
4 years ago
14

How do you scientist know that the universe is expanding

Biology
2 answers:
Vlad [161]4 years ago
6 0
It will be B hope that helped
sveticcg [70]4 years ago
3 0

Answer:

B) The Doppler Effect shows stars with blue shifted light

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A: geosphere

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What three traits are used to classify organisms?
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3 years ago
Which organic molecule would a long-distance runner most likely choose to eat before a race?
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