Question 1

The presence of a Mercurian magnetic field surprised the planetary scientists on the Mariner 10 team because

Accepted Answer

A)   Mercury is low in iron.
B)   Mercury spins too rapidly to produce a stable dynamo.
C)   it's still too hot for its core to have differentiated.
D)   the dynamo theory predicted that Mercury was spinning too slowly for one.
E)   Mercury lacks an iron core.F) A) and B)
G) All of the above

Question 2

The main constituent of the Martian atmosphere is

Accepted Answer

A)   hydrogen.
B)   helium.
C)   methane.
D)   carbon dioxide.
E)   nitrogen.F) A) and C)
G) D) and E)

Question 3

Saturn's magnetic field is weaker than Jupiter's because it has less ________.

Accepted Answer

The answer of Saturn's magnetic field is weaker than Jupiter's...

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

The ________ hemisphere of Mars is lower, smoother, and younger than the other one.

Accepted Answer

The answer of The ________ hemisphere of Mars is lower,...

Question 6

Where is most of the water on Mars believed to be?

Accepted Answer

In the polar caps an...

Question 7

What is the main constituent of the atmosphere of Venus?

Accepted Answer

A)   Oxygen
B)   Nitrogen
C)   Hydrogen
D)   Carbon dioxide
E)   Sulfuric acidF) A) and B)
G) A) and C)

Question 8

If jovian moons harbor life, this life is likely to resemble what terrestrial organisms?

Accepted Answer

A)   Bacteria
B)   Extremophiles
C)   Dolphins
D)   Moss
E)   DinosaursF) All of the above
G) B) and E)

Question 9

Uranus' rotation axis is tipped over 98 degrees, so its magnetosphere is tipped over the same amount.

Accepted Answer

A) True 
 B)False

Question 10

Compare and contrast the magnetospheres of Earth and Jupiter. Discuss strength and reaction to solar winds.

Accepted Answer

Jupiter's magnetosphere is the strongest...

Question 11

In 1989, Neptune was found to have a huge storm named the

Accepted Answer

A)   South Tropical Disturbance.
B)   Great Red Spot.
C)   Great Dark Spot.
D)   Hellas Basin.
E)   Galileo Regio.F) A) and E)
G) A) and C)

Question 12

Which planet had the Great Dark Spot in 1989, but had lost it by 1995?

Accepted Answer

A)   Jupiter
B)   Saturn
C)   Uranus
D)   Neptune
E)   MarsF) B) and E)
G) A) and B)

Question 13

Neptune and Uranus have a bluish tint because

Accepted Answer

A)   at their distances, the Sun appears blue, the red absorbed by dust in the ecliptic.
B)   they are far away and distance makes objects appear bluish.
C)   their atmospheres contain methane, which absorbs red light.
D)   their atmospheres contain hydrogen and helium.
E)   ammonia ice reflects blue light better than any other color.F) A) and B)
G) All of the above

Question 14

In what ways do the magnetic fields of both Uranus and Neptune defy the conventional Dynamo Theory for planetary magnetic fields?

Accepted Answer

The planet's rotation, as the word dynam...

Question 15

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) A) and D)
G) B) and E)

Question 16

Most of Mars' water is now locked in a ________ layer below the surface.

Accepted Answer

The answer of Most of Mars' water is now locked...

Question 17

That the Tharsis region on Mars has so few craters

Accepted Answer

A)   proves tectonic activity is taking place.
B)   is due to the regions very low elevation.
C)   suggests it is the youngest region on the planet.
D)   suggests it is at the center of a particularly strong magnetic field.
E)   is due to annual flooding and water erosion.F) A) and D)
G) B) and C)

Question 18

The apparent "surface" of Jupiter is actually the tops of ________.

Accepted Answer

The answer of The apparent "surface" of Jupiter is actually...

Question 19

Why does Saturn radiate even more excess energy than Jupiter?

Accepted Answer

A)   Saturn is still radiating heat left over from its formation.
B)   Saturn's thick cloud layer contributes to a larger greenhouse effect.
C)   Helium rain gives off heat as it differentiates toward Saturn's center.
D)   Saturn's atmosphere contains much methane, creating a large greenhouse effect.
E)   Saturn can fuse hydrogen into helium in its core, like the Sun.F) B) and E)
G) D) and E)

Question 20

Life is thought to be unlikely in subsurface oceans, such as those in Europa, because sunlight does not reach these oceans.

Accepted Answer

A) True 
 B)False

Exam 5: The Eight Planets

Neptune and Uranus have a bluish tint because

Correct AnswerverifiedShow Answer

The presence of a Mercurian magnetic field surprised the planetary scientists on the Mariner 10 team because

Correct AnswerverifiedShow Answer

Most of Mars' water is now locked in a ________ layer below the surface.

Correct AnswerverifiedShow Answer

The ________ hemisphere of Mars is lower, smoother, and younger than the other one.

Correct AnswerverifiedShow Answer

In what ways do the magnetic fields of both Uranus and Neptune defy the conventional Dynamo Theory for planetary magnetic fields?

Correct AnswerverifiedThe planet's rotation, as the word dynam...View AnswerShow Answer

Saturn's magnetic field is weaker than Jupiter's because it has less ________.

Correct AnswerverifiedShow Answer

That the Tharsis region on Mars has so few craters

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

In 1989, Neptune was found to have a huge storm named the

Correct AnswerverifiedShow Answer

Uranus' rotation axis is tipped over 98 degrees, so its magnetosphere is tipped over the same amount.

Correct AnswerverifiedShow Answer

Which planet had the Great Dark Spot in 1989, but had lost it by 1995?

Correct AnswerverifiedShow Answer

Life is thought to be unlikely in subsurface oceans, such as those in Europa, because sunlight does not reach these oceans.

Correct AnswerverifiedShow Answer

If jovian moons harbor life, this life is likely to resemble what terrestrial organisms?

Correct AnswerverifiedShow Answer

Where is most of the water on Mars believed to be?

Correct AnswerverifiedIn the polar caps an...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

The apparent "surface" of Jupiter is actually the tops of ________.

Correct AnswerverifiedShow Answer

Compare and contrast the magnetospheres of Earth and Jupiter. Discuss strength and reaction to solar winds.

Correct AnswerverifiedJupiter's magnetosphere is the strongest...View AnswerShow Answer

The main constituent of the Martian atmosphere is

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What is the main constituent of the atmosphere of Venus?

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Why does Saturn radiate even more excess energy than Jupiter?

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The planet's rotation, as the word dynam...
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In the polar caps an...
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Jupiter's magnetosphere is the strongest...
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