Question 1

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 2

Phobos is so close to Mars that tides are currently making its orbit _______________.

Accepted Answer

shrink,sma

Question 3

Mars has _______________ but it is hidden.

Accepted Answer

The answer of Mars has _______________ but it is hidden....

Question 4

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 5

Shield volcanoes, like those on Venus and Mars, occur ____.

Accepted Answer

A)  over a hot spot 
B)  along a subduction zone 
C)  Inside a chamber 
D)  along plate boundaries 
E)  within a caldera 
A)  over a hot spot 
B)  along a subduction zone 
C)  Inside a chamber 
D)  along plate boundaries 
E)  within a caldera

Question 6

Venus has no _______________ to absorb the ultraviolet radiation in sunlight.

Accepted Answer

The answer of Venus has no _______________ to absorb the...

Question 7

The atmosphere of Venus is very dry.

Accepted Answer

A) True 
 B)False

Question 8

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 9

How have scientists mapped the surface features of Venus?

Accepted Answer

A)  data received from rovers on the surface 
B)  data received from multiple probes sent to the surface 
C)  observations made from the Hubble Space Telescope 
D)  radar imaging by the Magellan spacecraft 
E)  UV imaging by the Odyssey spacecraft 
A)  data received from rovers on the surface 
B)  data received from multiple probes sent to the surface 
C)  observations made from the Hubble Space Telescope 
D)  radar imaging by the Magellan spacecraft 
E)  UV imaging by the Odyssey spacecraft

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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

Question 12

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 13

The surface rocks on Venus are similar to ____ rocks on Earth.

Accepted Answer

A)  oxide-rich 
B)  anorthosite 
C)  sedimentary 
D)  granitic 
E)  basaltic 
A)  oxide-rich 
B)  anorthosite 
C)  sedimentary 
D)  granitic 
E)  basaltic

Question 14

Which two rover missions provided detailed information about the surface of Mars?

Accepted Answer

A)  Phoenix and Odyssey 
B)  Spirit and Opportunity 
C)  Mars Express and Magellan 
D)  Magellan and Terra 
E)  Voyager and Apollo 
A)  Phoenix and Odyssey 
B)  Spirit and Opportunity 
C)  Mars Express and Magellan 
D)  Magellan and Terra 
E)  Voyager and Apollo

Question 15

Which is a unique characteristic of Venus not shared by the other Terrestrial planets?

Accepted Answer

A)  The planet has an atmosphere. 
B)  The planet has volcanoes on its surface. 
C)  The planet experiences retrograde rotation. 
D)  The planet has a strong magnetic field. 
E)  The planet once had water on its surface. 
A)  The planet has an atmosphere. 
B)  The planet has volcanoes on its surface. 
C)  The planet experiences retrograde rotation. 
D)  The planet has a strong magnetic field. 
E)  The planet once had water on its surface.

Question 16

The Venus's atmosphere contains 96 percent _______________.

Accepted Answer

The answer of The Venus's atmosphere contains 96 percent _______________....

Question 17

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 18

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 19

Venus rotates once every _______________ Earth days.

Accepted Answer

The answer of Venus rotates once every _______________ Earth days....

Question 20

The instruments of the Mars Odyssey spacecraft detected water frozen in the soil over large areas of Mars.

Accepted Answer

A) True 
 B)False

Exam 22: Venus and Mars

What makes up the bulk of the atmosphere of Venus?

Phobos is so close to Mars that tides are currently making its orbit _______________.

Mars has _______________ but it is hidden.

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

Shield volcanoes, like those on Venus and Mars, occur ____.

Venus has no _______________ to absorb the ultraviolet radiation in sunlight.

The atmosphere of Venus is very dry.

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?

How have scientists mapped the surface features of Venus?

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

What is the current dominant geological process on Mars?

Phobos and Deimos are believed to be captured ____.

The surface rocks on Venus are similar to ____ rocks on Earth.

Which two rover missions provided detailed information about the surface of Mars?

Which is a unique characteristic of Venus not shared by the other Terrestrial planets?

The Venus's atmosphere contains 96 percent _______________.

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

Which statement best describes the atmosphere of Venus?

Venus rotates once every _______________ Earth days.

The instruments of the Mars Odyssey spacecraft detected water frozen in the soil over large areas of Mars.

Here and Now

A Users Guide to the Sky

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Origins of Modern Astronomy

Gravity

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The Family of Stars

The Interstellar Medium

Formation and Structure of Stars

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The Milky Way Galaxy

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Supermassive Black Holes and Active Galaxies

Modern Cosmology

Origin of the Solar System and Extrasolar Planets

Earth the Active Planet

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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?