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Author Question: The most striking valley in the solar system is: A) the Grand Canyon in Arizona. B) Gwenivere on ... (Read 52 times)

jCorn1234

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on: Jul 27, 2018
The most striking valley in the solar system is:
 
  A) the Grand Canyon in Arizona.
  B) Gwenivere on Venus.
  C) the Discovery Scarp of Mercury.
  D) Valles Marineris on Mars.
  E) Valhalla on Callisto.

Question 2

The number of comets in the Oort cloud is probably about
 
  A) a thousand.
  B) a million.
  C) a billion.
  D) a trillion.
  E) a quintillion.


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tofugiraffe

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

D

Answer to Question 2

D


jCorn1234

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Reply 2 on: Jul 27, 2018
Excellent

epscape

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Reply 3 on: Yesterday
:D TYSM

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