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Author Question: Assume that the average rate of 1-km sized asteroids hitting the Earth is about 1 every million ... (Read 266 times)

burchfield96

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on: Jul 27, 2018
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 ten thousand.
  B) one in a million.
  C) zero.
  D) one in 100 million.
  E) inevitable, it has to happen sometime.

Question 2

Galaxies contain less mass as dark matter than as visible stars.
 
  Indicate whether the statement is true or false


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catron30

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

FALSE


burchfield96

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Reply #2 on: Jul 27, 2018
TY


catron30

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Reply #3 on: Jul 27, 2018
You're welcome


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