133. According to the passage, which of the following events occurred first
after the Big Bang?
(A)
The universe expanded and cooled until atoms formed.
(B)
Photons streamed unimpeded through space.
(C)
All matter existed as particles known as “quarks.”
(D)
The cosmic microwave background cooled to 2.7 Kelvin.
(E)
Atomic nuclei, composed of protons and neutrons, formed.
134. According to the passage, with which of the following would the author
most likely agree regarding the discovery of Penzias and Wilson?
(A)
It was not as important as the signal for which they were originally
searching.
(B)
The telescope belonging to Penzias and Wilson was more sensitive
than that of the Princeton team.
(C)
Penzias and Wilson would not have discovered the cosmic
microwave background if it had been more than 3 Kelvin in
temperature.
(D)
Penzias and Wilson did not initially understand the implications of
their results.
(E)
Penzias and Wilson did not believe that their signal was real when
they took their discovery to the Princeton team.
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