Which statement accurately describes how observations of distant galaxies help us learn about galaxy evolution?

Question

Accepted Answer

By observing galaxies with different lookback times, we learn how galaxies appeared at different stages of their evolution

Answer

We can watch as two galaxies merge and view the result, helping us learn how mergers affect evolution

Answer

We can observe the birth of galaxies

Answer

We can see what our galaxy used to look like and therefore theorise about the physical processes that led to its current appearance

Answer

We can observe the evolution of a single galaxy over time

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