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Exam 8: Mars

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Question 21

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The ancient water erosion features on the surface of Mars suggest that the planet must have had a much

A) warmer, thinner atmosphere in the past
B) cooler, thicker atmosphere in the past
C) cooler, thinner atmosphere in the past
D) warmer, thicker atmosphere in the past

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Question 22

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Liquid water cannot exist for very long on the surface of Mars today because

A) it gets rapidly destroyed by intense solar radiation
B) its surface temperature is too high
C) it rapidly reacts with the Martian surface to form peroxides
D) its atmosphere is too thin

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Question 23

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The positive result from the Labeled Release experiment was inconsistent with the results from which other biology experiment or experiments?

Observations by the Mars Odyssey orbiter show that most of the water on Mars today is

Due to the dust suspended in the Martian atmosphere, sunrises and sunsets on Mars are

What method has been used to determine the most recent time the Tharsis volcanoes on Mars have erupted?

If a glass of liquid water were suddenly exposed to the Martian atmosphere today, the water would

Even though 95% of the Martian atmosphere is composed of carbon dioxide, the greenhouse effect on Mars today is very weak because its atmosphere is very

Which of the following statements best describes the idea behind the Gas Chromatograph/Mass Spectrometer Experiment on board the Viking landers?

Which of the following do winds on Mars NOT cause

Which of the following did NOT contribute to the thinning of the Martian atmosphere during its early history?

The most important geological process occurring on Mars today is

The extent to which Mars has been habitable essentially boils down to the

As far as we know, the first scientist to seriously suggest the possibility of life on Mars was

The interior of Mars cooled more quickly than the interior of the Earth because it has

Due to its elliptical orbit, Mars is closer to the Sun on average during summer in the Southern Hemisphere. This means Southern Summer on Mars will be

When Percival Lowell insisted on the existence of Martian canals, even though his observations were discredited by other scientists, he exhibited

What are the most likely sources of the methane gas detected in the Martian atmosphere by the Mars Express orbiter?

Spacecraft orbiting Mars have detected hydrated minerals, such as clays, sulfates, and silica, which are known to form in the presence of

What is the most convincing piece of evidence to suggest that Martian meteorites actually come from Mars?