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2026-27 AL-Earth and Space Science
Stars — Unit test
Question 6
6
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Stars — Unit test
Question 6 • 2026-27 AL-Earth and Space Science
What was discovered in 1965 and is believed to be leftover thermal energy from the big bang?
Answer
r
red shift
t
the Eagle Nebula
t
the Doppler effect
b
background radiation
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