Based on what you know of Earth's evolution,what percentage of Earth-like planets in a star cluster with an age of 2 billion years has intelligent life?
A) 0 percent
B) 10 percent
C) 30 percent
D) 50 percent
Correct Answer:
Verified
Q22: A value of N = 0.1 for
Q23: What is the goal of SETI?
A) to
Q25: As the Sun evolves into a red
Q26: NASA spacecraft have found good evidence that
Q28: SETI's Allen Telescope Array is designed to
Q29: What does it mean if a population
Q30: All of the following events will likely
Q31: Why is it unlikely that we will
Q32: The habitable zone around a star depends
Q32: Evidence for lakes of hydrocarbons,such as methane,has
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents