Multiple Choice
Which of these statements BEST characterizes the human study of stellar evolution?
A) The changes in the observable cosmos over a human lifetime are profound.
B) A human lifetime is long enough to witness the evolution of a star through much of its evolutionary history.
C) Astronomers have never witnessed a significant change in any single star.
D) At any moment. Stars can be observed in every phase of evolution.
Correct Answer:

Verified
Correct Answer:
Verified
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