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Author Question: At about what frequency is Earth struck by a meteorite large enough (about 10 km in diameter) to ... (Read 66 times)

Jkov05

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on: Jul 29, 2018
At about what frequency is Earth struck by a meteorite large enough (about 10 km in diameter) to cause mass extinctions?
 
  A) about every 1 million years
  B) about every 10 million years
  C) about every 100 million years
  D) This has yet to occur on Earth.

Question 2

To scale, if Earth were the size of a basketball, then the Moon would be about the size of a
 
  A) bowling ball.
  B) tennis ball.
  C) ping-pong ball.
  D) marble.


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jazzlynnnnn

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B


Jkov05

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Reply 2 on: Jul 29, 2018
Wow, this really help

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Reply 3 on: Yesterday
Excellent

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