Question 1

Phobos and Deimos are probably captured comet nuclei.

Accepted Answer

A) True 
 B)False

Question 2

Evidence of liquid water in Mars' distant past suggests that it had a substantial atmosphere compared to what it has presently.What happened to its water vapor?

Accepted Answer

A)   The carbon dioxide in its atmosphere dissolved in the water and combined with surface rocks.
B)   Its atmosphere was mostly hydrogen and helium. Mars' gravity is too weak to hold them.
C)   The water vapor has frozen out into the polar ice caps and permafrost as Mars has cooled.
D)   Mars initially had such a large Greenhouse Effect that the atmosphere became quite hot and slowly escaped.
E)   It has now all been lost in space, including the carbon dioxide and water vapor.F) B) and C)
G) A) and B)

Question 3

Which of these is NOT now on the surface of Mars?

Accepted Answer

A)   Mars Global Surveyor
B)   Viking 1
C)   Pathfinder
D)   Sojourner
E)   SpiritF) A) and E)
G) All of the above

Question 4

The atmosphere of Mars is composed of mostly carbon dioxide along with some nitrogen.

Accepted Answer

A) True 
 B)False

Question 5

Which hemisphere on Mars is believed to be older,and what is the evidence?

Accepted Answer

The southern hemisphere is older and hig...

Question 6

Why do we know much more about the surface of Mars than that of Venus?

Accepted Answer

Venus has a thick cloud cover that preve...

Question 7

The polar caps and dust storms of Mars can be seen with Earth-based amateur telescopes.

Accepted Answer

A) True 
 B)False

Question 8

If Mars' atmosphere is mostly carbon dioxide,why isn't it as hot as Venus?

Accepted Answer

Although it has a carbon dioxi...

Question 9

The residual polar cap that does not vanish during the Martian summer is ________.

Accepted Answer

The answer of The residual polar cap that does not...

Question 10

The surface of Mars is surprisingly smooth and featureless.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following characterizes a shield volcano?

Accepted Answer

A)   It sits above a hot spot in the planet's mantle.
B)   It is formed by moving tectonic plates.
C)   It will be smaller than cinder cones like Maxwell Mons on Venus.
D)   It erupts only briefly before subsiding forever.
E)   It cannot grow very large, for the plates are constantly moving.F) A) and B)
G) C) and D)

Question 12

Atmospheric pressure on Mars is roughly half that of Earth's at sea level.

Accepted Answer

A) True 
 B)False

Question 13

Why are telescopic observers so obsessed with observing Mars?

Accepted Answer

The red color attracted our attention in...

Question 14

The largest difference between Mars' northern and southern hemispheres is that:

Accepted Answer

A)   the southern appears older, with more impact craters.
B)   the northern has all the outflows and must have been much hotter.
C)   the northern is higher overall, despite some high volcanoes in the south.
D)   the southern has a polar cap, but none ever forms in the north.
E)   the southern is much darker, with large mare-like basaltic lava flows.F) B) and C)
G) A) and B)

Question 15

The Earth's orbital eccentricity does not play a major role in our seasons,for perihelion occurs in January.Is this true on Mars also?

Accepted Answer

No,the more eccentric orbit of Mars mean...

Question 16

Running water continues to be the major erosive factor of Mars today.

Accepted Answer

A) True 
 B)False

Question 17

If water caused the huge outflow channels on Mars,what was the most likely process that formed them?

Accepted Answer

A)   rainfall from the hydrosphere
B)   catastrophic but rare flooding
C)   annual melting of the seasonal ice caps
D)   large comets that struck Mars
E)   heat from the impact of the large asteroid that made HellasF) B) and D)
G) B) and E)

Question 18

Compare the days,seasons,and years of Mars and Earth.

Accepted Answer

The lengths of the days are very similar...

Question 19

The difference between the Grand Canyon and the Valles Marineris is:

Accepted Answer

A)   the Grand Canyon was formed by water.
B)   the Valles Marineris is much larger than the Grand Canyon.
C)   the Valles Marineris has tectonic features surrounding it.
D)   the Valles Marineris has craters in and around it.
E)   All of the above.F) A) and B)
G) All of the above

Question 20

The vast flood deposits support the hypothesis that Mars once had much running water.Assuming that Mars did have water once,what happened to it?

Accepted Answer

As Martian volcanism died down,the atmos...

Exam 10: Mars: A Near Miss for Life?

Running water continues to be the major erosive factor of Mars today.

Correct AnswerverifiedShow Answer

Which hemisphere on Mars is believed to be older,and what is the evidence?

Correct AnswerverifiedThe southern hemisphere is older and hig...View AnswerShow Answer

Which of these is NOT now on the surface of Mars?

Correct AnswerverifiedShow Answer

Which of the following characterizes a shield volcano?

Correct AnswerverifiedShow Answer

Compare the days,seasons,and years of Mars and Earth.

Correct AnswerverifiedThe lengths of the days are very similar...View AnswerShow Answer

Atmospheric pressure on Mars is roughly half that of Earth's at sea level.

Correct AnswerverifiedShow Answer

The atmosphere of Mars is composed of mostly carbon dioxide along with some nitrogen.

Correct AnswerverifiedShow Answer

Why are telescopic observers so obsessed with observing Mars?

Correct AnswerverifiedThe red color attracted our attention in...View AnswerShow Answer

The polar caps and dust storms of Mars can be seen with Earth-based amateur telescopes.

Correct AnswerverifiedShow Answer

Why do we know much more about the surface of Mars than that of Venus?

Correct AnswerverifiedVenus has a thick cloud cover that preve...View AnswerShow Answer

Phobos and Deimos are probably captured comet nuclei.

Correct AnswerverifiedShow Answer

Evidence of liquid water in Mars' distant past suggests that it had a substantial atmosphere compared to what it has presently.What happened to its water vapor?

Correct AnswerverifiedShow Answer

The difference between the Grand Canyon and the Valles Marineris is:

Correct AnswerverifiedShow Answer

The Earth's orbital eccentricity does not play a major role in our seasons,for perihelion occurs in January.Is this true on Mars also?

Correct AnswerverifiedNo,the more eccentric orbit of Mars mean...View AnswerShow Answer

The surface of Mars is surprisingly smooth and featureless.

Correct AnswerverifiedShow Answer

The largest difference between Mars' northern and southern hemispheres is that:

Correct AnswerverifiedShow Answer

If Mars' atmosphere is mostly carbon dioxide,why isn't it as hot as Venus?

Correct AnswerverifiedAlthough it has a carbon dioxi...View AnswerShow Answer

If water caused the huge outflow channels on Mars,what was the most likely process that formed them?

Correct AnswerverifiedShow Answer

The vast flood deposits support the hypothesis that Mars once had much running water.Assuming that Mars did have water once,what happened to it?

Correct AnswerverifiedAs Martian volcanism died down,the atmos...View AnswerShow Answer

The residual polar cap that does not vanish during the Martian summer is ________.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
The southern hemisphere is older and hig...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The lengths of the days are very similar...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The red color attracted our attention in...
View Answer

Correct Answer
verified

Correct Answer
verified
Venus has a thick cloud cover that preve...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
No,the more eccentric orbit of Mars mean...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Although it has a carbon dioxi...
View Answer

Correct Answer
verified

Correct Answer
verified
As Martian volcanism died down,the atmos...
View Answer

Correct Answer
verified