Midterm 1 - Quiz 9

9 Questions | Total Attempts: 35

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Midterm Quizzes & Trivia

More questions on Mars.


Questions and Answers
  • 1. 
    Which of the following best characterizes a shield volcano?
    • A. 

      It sits above a hot spot in the planet's mantle.

    • B. 

      It has very steep slopes.

    • C. 

      It can erupt only briefly before being dragged off the hot spot.

    • D. 

      It cannot get as high as Mt. Everest bfore the thin crust starts slumping.

    • E. 

      It cannot grow very large, for it has a very short span of eruption.

  • 2. 
    Evidence for liquid water at some time in the history of Mars includes:
    • A. 

      Valles Marineris

    • B. 

      Valles Grande

    • C. 

      The "canali" observed by Schiaparelli and Lowell

    • D. 

      All of the above

    • E. 

      None of the above

  • 3. 
    Additional evidence for liquid water at some time in the history of Mars includes:
    • A. 

      Runoff channels

    • B. 

      Outflow channels

    • C. 

      "gullies" in craters walls

    • D. 

      All of the above

    • E. 

      None of the above

  • 4. 
    Where is the water today on Mars?
    • A. 

      In "permafrost" layers

    • B. 

      In permanently frozen "residual" ice caps at the north and south poles

    • C. 

      In trace amount in atmospheric clouds

    • D. 

      All of the above

    • E. 

      None of the above

  • 5. 
    The seasonal changes in the "polar caps" is largely from:
    • A. 

      Dust layers due to very different winter vs summer patterns of dust storms

    • B. 

      Layers of frozen water

    • C. 

      Layers of frozen carbon dioxide (often called "dry ice")

    • D. 

      All of the above

    • E. 

      None of the above

  • 6. 
    Mars appears red because:
    • A. 

      Carbon dioxide in Mars' atomosphere reflects dominantly red light

    • B. 

      The surface temperature of Mars means that the planet radiates dominantly in the "red" part of the spectrum.

    • C. 

      Iron(rust-like) compounds in the surface material of the planet.

    • D. 

      All of the above

    • E. 

      None of the above

  • 7. 
    Given that Mars' atmosphere is composed of "greenhouse gases" why is the surface temperature not higher?
    • A. 

      "greenhouse" effect only works when there is significant cloud cover on the planet.

    • B. 

      "greenhouse" effect only works when the "greenhouse gases" are less than a few percent of the total atmosphere on the planet.

    • C. 

      Because the overall thin atmosphere there are simply not enough "greenhouse gases" to trap the infrared radiation from the planet surface.

    • D. 

      All of the above

    • E. 

      None of the above

  • 8. 
    Dust storms on Mars are about the size of:
    • A. 

      Lake Superior

    • B. 

      Texas

    • C. 

      North America

    • D. 

      Virtually the entire planet

    • E. 

      All of the above

  • 9. 
    Carbon dioxide, in addition to being the dominant has in the Martian atmosphere, is also found:
    • A. 

      In polar "ice" caps

    • B. 

      Absorbed in the surface rocks

    • C. 

      All of the above

    • D. 

      None of the above