Question 1

Venus is 95 percent the diameter of Earth.

Accepted Answer

A) True 
 B)False  True

Question 2

What is the current dominant geological process on Mars?

Accepted Answer

A)  plate tectonics 
B)  volcanism 
C)  wind erosion 
D)  water erosion 
E)  cratering 
A)  plate tectonics 
B)  volcanism 
C)  wind erosion 
D)  water erosion 
E)  cratering C

Question 3

What is significant about Olympus Mons?

Accepted Answer

A)  It is the only impact crater remaining on Mars. 
B)  It is the largest crater in the Solar System. 
C)  It is the largest volcano on Venus. 
D)  It is the only composite volcano on Mars. 
E)  It is the largest volcano in the Solar System. 
A)  It is the only impact crater remaining on Mars. 
B)  It is the largest crater in the Solar System. 
C)  It is the largest volcano on Venus. 
D)  It is the only composite volcano on Mars. 
E)  It is the largest volcano in the Solar System. E

Question 4

What evidence in Mars's atmosphere supports the idea that Mars once had flowing, liquid water?

Accepted Answer

The abundant presence of deuterium in th

Question 5

What keeps water frozen on Mars?

Accepted Answer

A)  The constant subzero surface temperatures 
B)  The low atmospheric pressure of the planet 
C)  The distance between Mars and the Sun 
D)  The relatively quick rotation period 
E)  The negligible axis tilt of the planet 
A)  The constant subzero surface temperatures 
B)  The low atmospheric pressure of the planet 
C)  The distance between Mars and the Sun 
D)  The relatively quick rotation period 
E)  The negligible axis tilt of the planet

Question 6

How is it that Earth has less CO2 in its atmosphere than Venus, even though both planets likely outgassed the about the same amount of CO2 during their development?

Accepted Answer

A)  Earth absorbed most of the CO2 into its oceans. 
B)  Venus absorbed most of the CO2 into its oceans. 
C)  Earth lost most of its CO2 because of weak gravity. 
D)  Venus rotates too slowly to lose any of its CO2. 
E)  Venus retained much of its CO2 in polar ice. 
A)  Earth absorbed most of the CO2 into its oceans. 
B)  Venus absorbed most of the CO2 into its oceans. 
C)  Earth lost most of its CO2 because of weak gravity. 
D)  Venus rotates too slowly to lose any of its CO2. 
E)  Venus retained much of its CO2 in polar ice.

Question 7

The very large size of Olympus Mons indicates that Mars has ____.

Accepted Answer

A)  plate tectonics 
B)  no plate tectonics 
C)  a thick atmosphere 
D)  a molten core 
E)  a very active surface 
A)  plate tectonics 
B)  no plate tectonics 
C)  a thick atmosphere 
D)  a molten core 
E)  a very active surface

Question 8

What makes up the bulk of the atmosphere of Venus?

Accepted Answer

A)  hydrogen 
B)  carbon dioxide 
C)  argon 
D)  water vapor 
E)  sulfuric acid 
A)  hydrogen 
B)  carbon dioxide 
C)  argon 
D)  water vapor 
E)  sulfuric acid

Question 9

Martian volcanoes are _______________ volcanoes with gradual slopes.

Accepted Answer

The answer of Martian volcanoes are _______________ volcanoes with gradual...

Question 10

How does the atmosphere of Venus circulate in comparison to the atmosphere of Earth?

Accepted Answer

Venus rotates very slowly; therefore, he

Question 11

Which statement best describes the atmosphere of Venus?

Accepted Answer

A)  Similar to Earth, it contains mostly nitrogen and oxygen. 
B)  Venus' atmosphere is high in carbon dioxide and considered a runaway greenhouse. 
C)  Venus has a negligible atmosphere. 
D)  Similar to Uranus, it contains mostly methane. 
E)  Similar to Mercury, it has a thin atmosphere high in carbon dioxide. 
A)  Similar to Earth, it contains mostly nitrogen and oxygen. 
B)  Venus' atmosphere is high in carbon dioxide and considered a runaway greenhouse. 
C)  Venus has a negligible atmosphere. 
D)  Similar to Uranus, it contains mostly methane. 
E)  Similar to Mercury, it has a thin atmosphere high in carbon dioxide.

Question 12

Studies have shown that the ice located in the south pole of Mars is mostly ____.

Accepted Answer

A)  H2O 
B)  NO2 
C)  CO2 
D)  O2 
E)  FeO2 
A)  H2O 
B)  NO2 
C)  CO2 
D)  O2 
E)  FeO2

Question 13

The excess deuterium in Venus' atmosphere indicates that Venus currently has substantial amounts of water on its surface.

Accepted Answer

A) True 
 B)False

Question 14

The crust of Mars is much thinner than the crust of Earth.

Accepted Answer

A) True 
 B)False

Question 15

Which characteristic of Venus has led many to call it the "sister planet" to Earth?

Accepted Answer

A)  Venus and Earth have very similar atmospheres. 
B)  Venus is almost the same size as Earth. 
C)  Venus and Earth have liquid water on the surface. 
D)  Venus is the same distance from the Sun as Earth. 
E)  Venus and Earth have composite volcanoes. 
A)  Venus and Earth have very similar atmospheres. 
B)  Venus is almost the same size as Earth. 
C)  Venus and Earth have liquid water on the surface. 
D)  Venus is the same distance from the Sun as Earth. 
E)  Venus and Earth have composite volcanoes.

Question 16

Phobos and Deimos are believed to be captured ____.

Accepted Answer

A)  comets 
B)  planetesimals 
C)  planetoids 
D)  asteroids 
E)  meteorites 
A)  comets 
B)  planetesimals 
C)  planetoids 
D)  asteroids 
E)  meteorites

Question 17

What keeps the surface temperatures constant all over Venus?

Accepted Answer

A)  a high level of deuterium within its atmosphere 
B)  a thick layer of water vapor just above the surface 
C)  a greenhouse effect holding in the heat 
D)  a slow, retrograde rotation on its axis 
E)  a thick atmosphere and high winds carry heat efficiently 
A)  a high level of deuterium within its atmosphere 
B)  a thick layer of water vapor just above the surface 
C)  a greenhouse effect holding in the heat 
D)  a slow, retrograde rotation on its axis 
E)  a thick atmosphere and high winds carry heat efficiently

Question 18

Venus's tectonic processes seem to be vertical rather than horizontal.

Accepted Answer

A) True 
 B)False

Question 19

Venus has many more _______________ than Earth, but not nearly as many as Earth's Moon.

Accepted Answer

The answer of Venus has many more _______________ than Earth,...

Question 20

Which statement best describes Phobos and Deimos?

Accepted Answer

A)  small satellites, irregular in shape and heavily cratered 
B)  large satellites, spherical in shape with smooth surfaces 
C)  small satellites, spherical in shape with smooth surface. 
D)  one large and one small satellite, irregular in shape with lava flows 
E)  large satellites, irregular in shape and heavily cratered 
A)  small satellites, irregular in shape and heavily cratered 
B)  large satellites, spherical in shape with smooth surfaces 
C)  small satellites, spherical in shape with smooth surface. 
D)  one large and one small satellite, irregular in shape with lava flows 
E)  large satellites, irregular in shape and heavily cratered

Exam 22: Venus and Mars

Venus is 95 percent the diameter of Earth.

What is the current dominant geological process on Mars?

What is significant about Olympus Mons?

What evidence in Mars's atmosphere supports the idea that Mars once had flowing, liquid water?

What keeps water frozen on Mars?

How is it that Earth has less CO2 in its atmosphere than Venus, even though both planets likely outgassed the about the same amount of CO2 during their development?

The very large size of Olympus Mons indicates that Mars has ____.

What makes up the bulk of the atmosphere of Venus?

Martian volcanoes are _______________ volcanoes with gradual slopes.

How does the atmosphere of Venus circulate in comparison to the atmosphere of Earth?

Which statement best describes the atmosphere of Venus?

Studies have shown that the ice located in the south pole of Mars is mostly ____.

The excess deuterium in Venus' atmosphere indicates that Venus currently has substantial amounts of water on its surface.

The crust of Mars is much thinner than the crust of Earth.

Which characteristic of Venus has led many to call it the "sister planet" to Earth?

Phobos and Deimos are believed to be captured ____.

What keeps the surface temperatures constant all over Venus?

Venus's tectonic processes seem to be vertical rather than horizontal.

Venus has many more _______________ than Earth, but not nearly as many as Earth's Moon.

Which statement best describes Phobos and Deimos?

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How is it that Earth has less CO₂ in its atmosphere than Venus, even though both planets likely outgassed the about the same amount of CO₂ during their development?