AnswersEarth Systems AOther Objects in the Solar System — Unit testQuestion 10
10
QuizMultiple Choice

Other Objects in the Solar System — Unit test

Question 10 • Earth Systems A

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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