What would be the effect of doubling the rate of star formation, r*, on the results of the drake equation?
drake equation: n = r* × ƒp × ne × ƒl × ƒi × ƒc × l
a. there would be no difference in the results.
b. there would be half as many extraterrestrial civilizations.
c. there would be twice as many extraterrestrial civilizations.
d. there would be four times as many extraterrestrial civilizations.
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