Multiple Choice
A value of N = 0.1 for the Drake equation signifies that:
A) one out of every 10 solar systems in our galaxy harbors intelligent life
B) one out of every 10 solar systems in our galaxy harbors life of some kind
C) one out of every 10 galaxies in our universe harbors intelligent life
D) one out of every 10 galaxies in our universe harbors life of some kind
E) approximately one intelligent civilization in the universe is created every 10 billion years.
Correct Answer:

Verified
Correct Answer:
Verified
Q15: In 1974, astronomers sent a message toward
Q17: The ability for one generation to pass
Q18: Approximately 10 percent of all life on
Q21: Name three main dangers (one human and
Q22: If a mutation occurred and spawned a
Q35: The four main chemicals of which most
Q41: Scientists have shown that ammonia and methane,
Q44: The habitable zone around a star depends
Q56: When the Pioneer and Voyager spacecraft were
Q57: Which of the following Solar System objects