How do observations of distant galaxies help us learn about galaxy evolution?
A)Observations at different distances show galaxies of different ages and therefore different stages of evolution.
B)We can observe the birth of galaxies.
C)We can observe the evolution of a single galaxy over time.
D)We can observe two galaxies merging and what the result is,helping us learn how mergers affect evolution.
E)We can see what our galaxy used to look like and therefore theorize about the physical processes that led to its current appearance.

Question

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The Answer is A

How Do Observations of Distant Galaxies Help Us Learn About