Physics 115 Survey of Astronomy

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Physics 115 Survey of Astronomy

• Quiz 5

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Question 1

• The most common gas in the atmosphere of Mars is
• a carbon dioxide
• b oxygen
• c hydrogen
• d helium.

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Question 2

• Which rock type, indicative of ancient water, has
  the Mars Exploration Rovers found?
• a primitive rock
• b igneous rock
• c sedimentary rock
• d metamorphic rock
• e none of the above.

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Question 3

• The main source of erosion on Mars at the present
  time is
• a flowing water in the rivers
• b ice floes that cover the entire planet in
  winter
• c microscopic organisms in a layer just below
  the surface
• d giant dust storms
• e none of the above there is no erosion on
  Mars.

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Question 4

• This feature directly indicates
• a that rivers once flowed on Mars
• b that life once existed on Mars
• c that the atmosphere was once thicker
• d that a substantial amount of water is frozen
  below the surface of Mars

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Question 5

• ALH84001, a meteorite believed to be originally
  from Mars, became famous because
• a of a claim that living things had been found
  inside it
• b of a claim that fossils of living things had
  been found inside it
• c it is the oldest rock so far discovered
• d none of the above.