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What supports the theory that the universe is expanding?

A: Parallax
B: Light-year
C: Main Sequence
D: H-R diagram
E: Red Shift
F: Fusion
G: Elliptical Galaxy
H: Barred Spiral Galaxy
J: Irregular Galaxy
K: Milky Way Galaxy

User Null Head
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2 Answers

2 votes

the answer is red shift

User Bam
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6 votes
I believe it's red shift
User Shoham Yetzhak
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