Multiple Choice
Suppose it turns out that one in 1 million stars has a planet that at some point in its history is home to an advanced civilization.Then the total number of civilizations that have arisen in our galaxy would be closest to
A) 4.
B) 40.
C) 400.
D) 4,000.
E) 40,000.
F) 400,000.
Correct Answer:
Verified
Correct Answer:
Verified
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