Multiple Choice
Assume that the average rate of 1-km sized asteroids hitting the Earth is about 1 every million years. The chance of the Earth being hit by a 1-km sized asteroid in the next 100 years is about:
A) one in a million.
B) inevitable, it has to happen sometime.
C) zero.
D) one in 100 million.
E) one in ten thousand.
Correct Answer:

Verified
Correct Answer:
Verified
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