Question 1

What is the evidence that suggests the past and present existence of surface water on Mars?

Accepted Answer

Runoff channels from old rivers and outflow channels from catastrophic flooding in the distant past. Recent mudflows down the sides of some canyons and crater walls suggest occasional eruptions of liquid water persist to this day, as imaged by the Global Surveyor. The Rovers in 2004 also found clear evidence of sedimentary rocks formed under water at both the landing sites, on opposite sides of the globe.

Question 2

Which of the following characterizes a shield volcano?

Accepted Answer

A)  It is dormant. 
B)  It can erupt only briefly before being dragged off the hot spot. 
C)  It sits above a hot spot in the planet's crust or mantle. 
D)  It forms along a plate boundary. 
E)  It cannot grow very large, for it has a very short span of eruption. 
A)  It is dormant. 
B)  It can erupt only briefly before being dragged off the hot spot. 
C)  It sits above a hot spot in the planet's crust or mantle. 
D)  It forms along a plate boundary. 
E)  It cannot grow very large, for it has a very short span of eruption. C

Question 3

In what ways are the magnetic fields of Uranus and Neptune unusual?

Accepted Answer

Unlike the magnetic fields of Earth, Jupiter and Saturn, the fields of Uranus and Neptune are not aligned with the rotational axis of their planet. Additionally, both fields are offset from their planet's center by a significant amount.

Question 4

Saturn has a magnetic field whose strength is similar to the Earth's.

Accepted Answer

A) True 
 B)False

Question 5

Venus and Mars probably evolved differently from Earth because

Accepted Answer

A)  they are slightly bigger than Earth. 
B)  they are more massive than Earth. 
C)  they have thicker atmospheres than the Earth. 
D)  they formed sooner than Earth. 
E)  they orbit at different distances from the Sun. 
A)  they are slightly bigger than Earth. 
B)  they are more massive than Earth. 
C)  they have thicker atmospheres than the Earth. 
D)  they formed sooner than Earth. 
E)  they orbit at different distances from the Sun.

Question 6

On Venus, the Coronae are volcanic features.

Accepted Answer

A) True 
 B)False

Question 7

The surface temperature of Venus is 750 K, even hotter than Mercury.

Accepted Answer

A) True 
 B)False

Question 8

The Great ________ Spot of Neptune was striking in 1989, but gone by 1995.

Accepted Answer

The answer of The Great ________ Spot of Neptune was...

Question 9

How does Mercury's magnetic field compare to our own?

Accepted Answer

A)  Like Venus, Mercury has no detectable magnetic field. 
B)  Like Mars and the Earth, it too has undergone polarity reversals. 
C)  It is much weaker than Earth's, but does deflect the solar wind to some degree. 
D)  It is amazingly strong, comparable to our own. 
E)  It was predicted from Mercury's rapid rotation and molten core. 
A)  Like Venus, Mercury has no detectable magnetic field. 
B)  Like Mars and the Earth, it too has undergone polarity reversals. 
C)  It is much weaker than Earth's, but does deflect the solar wind to some degree. 
D)  It is amazingly strong, comparable to our own. 
E)  It was predicted from Mercury's rapid rotation and molten core.

Question 10

What element is notably deficient in Saturn's atmosphere, and why?

Accepted Answer

Helium seems to be c

Question 11

Discuss the role that methane plays in the appearances of Neptune and Uranus.

Accepted Answer

At Uranus and Neptune, methane

Question 12

Jupiter's magnetic field is much stronger than Earth's, and has a magnetic tail that extends beyond the orbit of Saturn.

Accepted Answer

A) True 
 B)False

Question 13

Evidence of liquid water has not been seen on which of these jovian moons?

Accepted Answer

A)  Titan 
B)  Ganymede 
C)  Europa 
D)  Mimas 
A)  Titan 
B)  Ganymede 
C)  Europa 
D)  Mimas

Question 14

Relate the formation of Mercury's scarps to its differentiation.

Accepted Answer

As Mercury was molten, the dense iron an

Question 15

We have found Titan's surface to be perfect living condition for earthlike life.

Accepted Answer

A) True 
 B)False

Question 16

What is TRUE of Jupiter's magnetosphere?

Accepted Answer

A)  Although its surface field is greater, since the planet is larger the total field is actually weaker than Earth's. 
B)  It does not trap protons and electrons, as Earth's Van Allen belts do. 
C)  It has a tail that extends at least to Saturn's orbit. 
D)  It is most extensive on the sunward side of the planet. 
E)  It is only slightly stronger than Saturn's. 
A)  Although its surface field is greater, since the planet is larger the total field is actually weaker than Earth's. 
B)  It does not trap protons and electrons, as Earth's Van Allen belts do. 
C)  It has a tail that extends at least to Saturn's orbit. 
D)  It is most extensive on the sunward side of the planet. 
E)  It is only slightly stronger than Saturn's.

Question 17

Venus' high surface temperature is due to the ________ effect.

Accepted Answer

The answer of Venus' high surface temperature is due to...

Question 18

Europa is the most promising of the bodies in the outer solar system for life in its salty seas.

Accepted Answer

A) True 
 B)False

Question 19

The greenhouse effect on Venus is due to ________ in its atmosphere.

Accepted Answer

The answer of The greenhouse effect on Venus is due...

Question 20

Mars' magnetic field is so weak because

Accepted Answer

A)  it spins much slower than Earth does. 
B)  it core may no longer be molten. 
C)  its core contains less iron than our own. 
D)  Both B and C are probable. 
E)  All of the above are correct. 
A)  it spins much slower than Earth does. 
B)  it core may no longer be molten. 
C)  its core contains less iron than our own. 
D)  Both B and C are probable. 
E)  All of the above are correct.

What is the evidence that suggests the past and present existence of surface water on Mars?

Which of the following characterizes a shield volcano?

In what ways are the magnetic fields of Uranus and Neptune unusual?

Saturn has a magnetic field whose strength is similar to the Earth's.

Venus and Mars probably evolved differently from Earth because

On Venus, the Coronae are volcanic features.

The surface temperature of Venus is 750 K, even hotter than Mercury.

The Great ________ Spot of Neptune was striking in 1989, but gone by 1995.

How does Mercury's magnetic field compare to our own?

What element is notably deficient in Saturn's atmosphere, and why?

Discuss the role that methane plays in the appearances of Neptune and Uranus.

Jupiter's magnetic field is much stronger than Earth's, and has a magnetic tail that extends beyond the orbit of Saturn.

Evidence of liquid water has not been seen on which of these jovian moons?

Relate the formation of Mercury's scarps to its differentiation.

We have found Titan's surface to be perfect living condition for earthlike life.

What is TRUE of Jupiter's magnetosphere?

Venus' high surface temperature is due to the ________ effect.

Europa is the most promising of the bodies in the outer solar system for life in its salty seas.

The greenhouse effect on Venus is due to ________ in its atmosphere.

Mars' magnetic field is so weak because

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Exam 5: The Eight Planets

What is the evidence that suggests the past and present existence of surface water on Mars?

Which of the following characterizes a shield volcano?

In what ways are the magnetic fields of Uranus and Neptune unusual?

Saturn has a magnetic field whose strength is similar to the Earth's.

Venus and Mars probably evolved differently from Earth because

On Venus, the Coronae are volcanic features.

The surface temperature of Venus is 750 K, even hotter than Mercury.

The Great ________ Spot of Neptune was striking in 1989, but gone by 1995.

How does Mercury's magnetic field compare to our own?

What element is notably deficient in Saturn's atmosphere, and why?

Discuss the role that methane plays in the appearances of Neptune and Uranus.

Jupiter's magnetic field is much stronger than Earth's, and has a magnetic tail that extends beyond the orbit of Saturn.

Evidence of liquid water has not been seen on which of these jovian moons?

Relate the formation of Mercury's scarps to its differentiation.

We have found Titan's surface to be perfect living condition for earthlike life.

What is TRUE of Jupiter's magnetosphere?

Venus' high surface temperature is due to the ________ effect.

Europa is the most promising of the bodies in the outer solar system for life in its salty seas.

The greenhouse effect on Venus is due to ________ in its atmosphere.

Mars' magnetic field is so weak because

The Night Sky

Light and Telescopes

The Solar System

Earth and Its Moon

Small Bodies in the Solar System

Formation of Planetary Systems

The Sun

Measuring the Stars

Star Formation and Evolution

Stellar Explosions

Black Holes

The Milky Way Galaxy

Galaxies

Cosmology and the Universe

Filters