Social Studies, 23.09.2019 07:00 jayzeptor

Acurrent estimate using the drake equation suggests that there are about two other civilizations in our galaxy with which we could communicate. suppose you believe that civilizations last two times longer than the number used in the estimate. if that were the case, how many civilizations would you estimate we could communicate with?
a. 1
b. 2
c. 4
d. 8

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