6
RCMultiple Choice
Unit Test — Cumulative exam
Question 6 • KY-Earth, Space Science B
Clara made a chart to summarize some of the evidence that supports the big bang theory.Which best describes Clara’s error?
Answer
A
During redshift, the light source and observer move closer together, not farther apart.B
The CMB is blue-shifted, not red-shifted, to the microwave region.C
The temperature of the CMB is cooler, not hotter, than at the time of the big bang.D
The redshift indicates approaching, not receding, galaxies.