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Author Question: What is one hypothesis for why the crust in the northern hemisphere of Mars is thinner and lower ... (Read 55 times)

Mollykgkg

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on: Jul 27, 2018
What is one hypothesis for why the crust in the northern hemisphere of Mars is thinner and lower than that in the southern hemisphere?
 
  A) a giant impact blasted away crust from the northern hemisphere
  B) it once hosted an ocean of water which eroded away the crust
  C) tectonic activity caused the southern hemisphere to rise up above the level of the northern hemisphere
  D) massive marsquakes caused the northern hemisphere to subside

Question 2

Suppose it is January and the Sun remains above your horizon all day long. Where must you be located?
 
  A) at the South Pole
  B) at the North Pole
  C) somewhere between the Antarctic Circle and the South Pole
  D) somewhere between the Arctic Circle and the North Pole


choc0chan

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

A

Answer to Question 2

C


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