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Author Question: Which of the following best describes the process that resulted in the Valles Marineris on Mars? ... (Read 60 times)

ec501234

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on: Jul 15, 2018
Which of the following best describes the process that resulted in the Valles Marineris on Mars?
 
  A) Stream erosion carved a deep central valley.
  B) A comet skimmed across the surface of the planet.
  C) Down-faulting created grabenlike valleys.
  D) A violent volcanic eruption blasted out a long caldera.

Question 2

Which of the following physical features has not yet been found on Mars?
 
  A) Polar ice caps
  B) H2O-rich atmosphere
  C) Extinct volcanoes
  D) Sand dunes


kescobar@64

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Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B


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