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Which of the Following Statements Best Reflects Our Current Knowledge

Question 71

Multiple Choice

Which of the following statements best reflects our current knowledge about the term flife in the equation Number of Civilizations = NHP × flife × fcivilization × fnow?


A) The value of flife is less than 0.0000001.
B) The value of flife is greater than 10.
C) The value of flife is between 0 and 1.
D) The value of flife is equal to 1/2.
E) The value of flife is either 0 or 1.

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